Encycolorpedia

Natural Color System / NCS S 1510-Y50R / #f6c4a1 Barwy Hex

#f6c4a1 Paint ChipSzesnastkowykod kolour #f6c4a1 jest jasny odcieniem pomarańczowy. W kolorze RGB model #f6c4a1 składa się z 96.47% czerwonego, 76.86% zielonego i 63.14% niebieskiego. W kolorze HSL przestrzeń #f6c4a1 ma odcień 25° (stopni), 83% nasycenie i 80% jasność. Kolor ten ma przybliżoną długość fali 584.86 nm.

Odmiany Kolorów

Nazwane Kolory

Schematy Kolorów

Pobieranie: GIMP GPL Adobe ASE (Adobe Swatch Exchange) Sketch Palette

#f6c4a1 gradient liniowy do kompemetnarnego #9cdbfb

  1. #f6c4a1
  2. #ebc8b0
  3. #dfccbf
  4. #d2d0ce
  5. #c3d4dd
  6. #b1d7ec
  7. #9cdbfb

Kolory monochromatyczne

  1. #cc9d7b
  2. #daaa88
  3. #e8b794
  4. #f6c4a1
  5. #ffd1ae
  6. #ffdfbb
  7. #ffedc8

Barwa

  1. #f6c4a1
  2. #f0c5a8
  3. #e9c7af
  4. #e3c8b7
  5. #dbc9be
  6. #d4cbc5
  7. #cccccc / #ccc

Odcienie kolorów

#f6c4a1 do białego

  1. #f6c4a1
  2. #f9ceb0
  3. #fbd7c0
  4. #fce1cf
  5. #feebdf
  6. #fff5ef
  7. #ffffff / #fff

#f6c4a1 do czarnego

  1. #f6c4a1
  2. #c9a084
  3. #9d7e68
  4. #735d4e
  5. #4c3e35
  6. #28221e
  7. #000000 / #000

Farba

Dopasowywanie farb

Podobne farby

  1. PPG Pittsburgh Paints

    1. ★ Shrimp Toast / PPG1197-4
      #f7c5a0
      ΔE = 0.667 / LRV ≈ 62.2%
    2. Caramel Ice / PPG1202-4
      #eec9aa
      ΔE = 3.054 / LRV ≈ 62.9%
  2. Clark+Kensington

    1. ★ Orange You Sweet / 12C-4
      #f9c39e
      ΔE = 0.956 / LRV ≈ 61.6%
    2. Hula Hoop / KIDCC-49
      #f2bc92
      ΔE = 3.322 / LRV ≈ 56.9%
  3. Vista Paint

    1. ★ Salmon River
      #f2c19f
      ΔE = 1.181 / LRV ≈ 59.5%
    2. Sunset Beach
      #ffc599
      ΔE = 2.890 / LRV ≈ 63.5%
  4. Sikkens

    1. ★ E0.20.80
      #fbc6a0
      ΔE = 1.317 / LRV ≈ 63.4%
    2. F0.20.80
      #f1cda2
      ΔE = 5.054 / LRV ≈ 65.0%
  5. Behr

    1. ★ Carving Party M220-3
      #f0c3a0
      ΔE = 1.442 / LRV ≈ 60.1%
    2. Almond Biscuit S250-2
      #e8c9aa
      ΔE = 4.406 / LRV ≈ 61.8%
  6. Dutch Boy

    1. ★ Fuzzy Peach
      #f0c4a3
      ΔE = 1.449 / LRV ≈ 60.7%
    2. Pumpkin Sprout
      #fac194
      ΔE = 2.980 / LRV ≈ 60.6%
  7. Coronado Paint

    1. ★ 8009 - Orange Essence
      #f3c3a5
      ΔE = 1.492 / LRV ≈ 60.8%
    2. 8018 - Australian Apricot
      #f4caad
      ΔE = 2.659 / LRV ≈ 64.5%
  8. Crown Diamond

    1. ★ 7252-31 Chinook
      #efc3a1
      ΔE = 1.623 / LRV ≈ 60.0%
    2. 7256-31 Chihuahua
      #f4cfa9
      ΔE = 4.485 / LRV ≈ 66.7%
  9. Rodda Paint

    1. ★ Salmon River 8017
      #f1c0a0
      ΔE = 1.683 / LRV ≈ 58.9%
    2. Australian Apricot 8018
      #f6cfb3
      ΔE = 4.153 / LRV ≈ 67.5%
  10. Cloverdale Paint

    1. ★ Salmon River / 8017
      #f1c0a0
      ΔE = 1.683 / LRV ≈ 58.9%
    2. Sunset Beach / 7992
      #ffc099
      ΔE = 2.963 / LRV ≈ 61.3%
  11. ICI Paints

    1. ★ Sweet Peach 90YR 62/248
      #f0c19c
      ΔE = 1.744 / LRV ≈ 59.1%
    2. Kiva Glow 10YY 67/213
      #f0cda7
      ΔE = 4.462 / LRV ≈ 65.0%
  12. Little Greene

    1. ★ Shrimp Pink
      #f7c7a9
      ΔE = 1.748 / LRV ≈ 63.5%
  13. Asian Paints

    1. ★ Peach Carnation / 8017
      #f0c0a1
      ΔE = 1.900 / LRV ≈ 58.8%
    2. Perfect Peach / 8000
      #f9b893
      ΔE = 4.505 / LRV ≈ 56.5%
  14. 1829

    1. ★ Gobelin Cream
      #f5c8a2
      ΔE = 1.934 / LRV ≈ 63.3%
    2. Aubusson Incarnadine
      #e7b798
      ΔE = 4.887 / LRV ≈ 53.1%
  15. Teknos

    1. ★ GBI102
      #fac09a
      ΔE = 1.997 / LRV ≈ 60.4%
    2. GBI150
      #e2bc97
      ΔE = 5.090 / LRV ≈ 54.4%
  16. Valspar Paint

    1. ★ Shy Time
      #efbf9c
      ΔE = 2.022 / LRV ≈ 58.0%
    2. Simply Coral
      #f9b691
      ΔE = 5.195 / LRV ≈ 55.6%
  17. Jedynka

    1. ★ Hamvas Narancs
      #fcc19c
      ΔE = 2.047 / LRV ≈ 61.2%
    2. Sárgabarack
      #f4caa6
      ΔE = 2.490 / LRV ≈ 64.2%
  18. Green Planet Paints

    1. ★ Cantera
      #f9caa9
      ΔE = 2.066 / LRV ≈ 65.2%
    2. Sphinx
      #f6c894
      ΔE = 5.189 / LRV ≈ 63.0%
  19. Resene

    1. ★ Romantic O88-055-058
      #ffc69e
      ΔE = 2.228 / LRV ≈ 64.1%
    2. Mandys Pink O83-055-048
      #f5b799
      ΔE = 4.922 / LRV ≈ 55.6%
  20. Toyo Ink

    1. ★ CF10138
      #f8bf97
      ΔE = 2.265 / LRV ≈ 59.5%
    2. CF10570
      #f0c99f
      ΔE = 3.905 / LRV ≈ 62.8%
  21. Levis

    1. ★ Clear Orange A30
      #fbcaaa
      ΔE = 2.281 / LRV ≈ 65.7%
    2. Clear Orange A40
      #ffbb93
      ΔE = 4.401 / LRV ≈ 58.9%
  22. Brighto Paints

    1. ★ 7108 Sweet Peech
      #f2c7ab
      ΔE = 2.300 / LRV ≈ 62.7%
    2. 1-5-4 Fire Princess
      #ffc4a9
      ΔE = 3.772 / LRV ≈ 63.6%
  23. Pratt & Lambert

    1. Nude Rose 7-5
      #fbc398
      ΔE = 2.353 / LRV ≈ 61.8%
    2. Dominique 6-6
      #ffc9ac
      ΔE = 3.221 / LRV ≈ 66.0%
  24. Nippon Paint

    1. Terra Peach / NP YO 1229 P
      #f8cbaa
      ΔE = 2.392 / LRV ≈ 65.6%
    2. Copper Dust / NP YO 1237 P
      #eeb798
      ΔE = 4.540 / LRV ≈ 54.3%
  25. Tikkurila

    1. 4838
      #edc5a2
      ΔE = 2.483 / LRV ≈ 60.5%
    2. X314
      #edb899
      ΔE = 4.240 / LRV ≈ 54.6%
  26. Plascon

    1. Jewel Mark O1-A1-4
      #fcc098
      ΔE = 2.486 / LRV ≈ 60.7%
    2. Romantic Overture O4-B1-4
      #fcc490
      ΔE = 4.630 / LRV ≈ 62.2%
  27. Dunn-Edwards

    1. Madrid Beige / 2209
      #ecbf9f
      ΔE = 2.494 / LRV ≈ 57.6%
    2. Cashew Nut / 2241
      #edccb3
      ΔE = 4.431 / LRV ≈ 64.4%
  28. Porter Paints

    1. Shrimp Boat / 124-4
      #f8be9d
      ΔE = 2.531 / LRV ≈ 59.2%
    2. Fleeting Fawn / 218-4
      #f6d2b2
      ΔE = 4.994 / LRV ≈ 68.9%
  29. Earthpaint

    1. 1-6-3 Corales
      #fbcbab
      ΔE = 2.537 / LRV ≈ 66.2%
    2. 1-5-3 Perfectly Peach
      #fac6af
      ΔE = 4.065 / LRV ≈ 63.8%
  30. Duron

    1. Colonial Revival Tan
      #f0c9aa
      ΔE = 2.674 / LRV ≈ 63.2%
    2. Bagel
      #e6c29e
      ΔE = 4.055 / LRV ≈ 57.9%
  31. Colortrend

    1. 1008
      #edc7a7
      ΔE = 2.740 / LRV ≈ 61.6%
    2. 1007
      #f1cdb0
      ΔE = 3.866 / LRV ≈ 65.5%
  32. Peintures MF

    1. BD219-1
      #f0c7a0
      ΔE = 2.800 / LRV ≈ 61.9%
    2. Lis cana
      #f1c8af
      ΔE = 3.195 / LRV ≈ 63.1%
  33. Crayola

    1. Peach
      #ffcba4
      ΔE = 2.807 / LRV ≈ 66.7%
    2. Desert Sand
      #edc9af
      ΔE = 3.591 / LRV ≈ 62.9%
  34. General Paint

    1. Shamus / CL 1632W
      #f1c9a4
      ΔE = 2.818 / LRV ≈ 63.2%
    2. Clay Bake / CL 1533W
      #faba9a
      ΔE = 4.228 / LRV ≈ 57.8%
  35. Olympic

    1. Caramel Ice B18-3
      #ebc5a7
      ΔE = 2.832 / LRV ≈ 60.4%
    2. Perfect Peach A23-3
      #f6cdb0
      ΔE = 3.431 / LRV ≈ 66.4%
  36. Nerolac

    1. Cool Canteloupe - 2088
      #fdc396
      ΔE = 2.985 / LRV ≈ 62.1%
    2. Apricot Candy - 4040
      #efbe93
      ΔE = 3.404 / LRV ≈ 57.3%
  37. GM / General Motors

    1. Shell Beige
      #f4caaf
      ΔE = 3.002 / LRV ≈ 64.6%
    2. Cognac Frost
      #e7c8b1
      ΔE = 4.711 / LRV ≈ 61.5%
  38. Martha Stewart Living

    1. Peachtree A13
      #e9c2a1
      ΔE = 3.016 / LRV ≈ 58.5%
    2. Honeysuckle A15
      #e6c59e
      ΔE = 4.884 / LRV ≈ 59.2%
  39. Sigma

    1. Orange Terra / S 1030-Y50R
      #f9bd94
      ΔE = 3.063 / LRV ≈ 58.7%
    2. Orange Terra / FS056
      #f4cbaf
      ΔE = 3.079 / LRV ≈ 65.0%
  40. Sto

    1. 32313
      #f3c0a6
      ΔE = 3.064 / LRV ≈ 59.5%
    2. 32314
      #f6cab2
      ΔE = 3.705 / LRV ≈ 65.1%
  41. Evonik-Degussa

    1. 6082P So Dainty
      #f8ccaf
      ΔE = 3.104 / LRV ≈ 66.2%
    2. 5055P Weak Tea
      #f8cea8
      ΔE = 3.662 / LRV ≈ 66.9%
  42. Kelly-Moore

    1. Salmon River / KM3620-1
      #edc0a6
      ΔE = 3.104 / LRV ≈ 58.5%
    2. Doug's Dale / KM4075-1
      #ebc2b0
      ΔE = 5.178 / LRV ≈ 59.4%
  43. CIL

    1. Peach Swirl
      #f1bb95
      ΔE = 3.127 / LRV ≈ 56.4%
    2. Peach Medley
      #f4ba9c
      ΔE = 3.862 / LRV ≈ 56.8%
  44. Wattyl

    1. Apricotta / B75W
      #f2ccad
      ΔE = 3.325 / LRV ≈ 65.1%
  45. Caran d'Ache

    1. 832 Brown Ochre 10%
      #eecaa9
      ΔE = 3.400 / LRV ≈ 63.3%
  46. Sherwin-Williams

    1. Certain Peach - 6625
      #f2bda2
      ΔE = 3.428 / LRV ≈ 57.9%
    2. Cosmetic Peach - 6618
      #f3c1ab
      ΔE = 4.127 / LRV ≈ 60.1%
  47. Sico

    1. 6067-31 Florentine Pink
      #f6cdb0
      ΔE = 3.431 / LRV ≈ 66.4%
    2. 6087-42 Sun Kissed
      #fecfa1
      ΔE = 4.828 / LRV ≈ 68.3%
  48. TRUMATCH

    1. 7-e
      #f5ba94
      ΔE = 3.501 / LRV ≈ 56.7%
    2. 6-f
      #f7ccb8
      ΔE = 5.112 / LRV ≈ 66.4%
  49. Tamiya

    1. Tamiya 80315,XF15
      #fdcca1
      ΔE = 3.515 / LRV ≈ 66.6%
  50. British Standard

    1. BS 2660 BS 2-026 - Mellow buff
      #edc9a5
      ΔE = 3.582 / LRV ≈ 62.5%
    2. BS 4800 04 E 50 - Pink
      #fbbfa5
      ΔE = 4.128 / LRV ≈ 60.5%
  51. Dupont

    1. CAS162
      #f2ba92
      ΔE = 3.596 / LRV ≈ 56.1%
    2. CAS130
      #f0bba2
      ΔE = 4.329 / LRV ≈ 56.7%
  52. Sanderson

    1. Coral Shadow
      #ffc3a7
      ΔE = 3.632 / LRV ≈ 63.1%
    2. Victory Tan
      #f1d0af
      ΔE = 4.911 / LRV ≈ 66.9%
  53. Albany Paint

    1. Copthorne
      #facab1
      ΔE = 3.677 / LRV ≈ 65.7%
    2. Blossom
      #f7c8b5
      ΔE = 5.093 / LRV ≈ 64.4%
  54. Laura Ashley

    1. 714 Light Copper
      #f6cba0
      ΔE = 3.679 / LRV ≈ 64.8%
    2. 614 Toasted Coconut
      #e9bb97
      ΔE = 3.763 / LRV ≈ 55.1%
  55. Federal Standard

    1. Federal Standard 32630
      #eac8a8
      ΔE = 3.706 / LRV ≈ 61.6%
    2. Federal Standard 33695
      #fdb992
      ΔE = 4.692 / LRV ≈ 57.7%
  56. Opaltone / OMS

    1. 4017
      #f2c597
      ΔE = 3.712 / LRV ≈ 61.0%
    2. 4016
      #edc7b1
      ΔE = 4.041 / LRV ≈ 62.0%
  57. KILZ

    1. Summer Smoothie / C622
      #f1bb9f
      ΔE = 3.733 / LRV ≈ 56.7%
    2. Gentle Embrace / C631
      #f4cbb7
      ΔE = 4.879 / LRV ≈ 65.4%
  58. Taubmans

    1. Peach Bloom / T12 20.B2
      #ffcfaa
      ΔE = 3.786 / LRV ≈ 68.8%
    2. Glowing Melon / T33-2
      #fbccb3
      ΔE = 4.051 / LRV ≈ 67.0%
  59. Dulux Australia

    1. Warm Beige / G46
      #eec498
      ΔE = 3.800 / LRV ≈ 59.9%
    2. Peach Tint / G45
      #f3cfab
      ΔE = 4.435 / LRV ≈ 66.6%
  60. Devoe Paint

    1. Peach Swirl / 80YR 57/293
      #f5ba90
      ΔE = 3.857 / LRV ≈ 56.5%
    2. Queen Coral / 80YR 57/179
      #e5bfa1
      ΔE = 3.898 / LRV ≈ 56.5%
  61. Flügger

    1. Klassisk ude: Terra di Sienna Brændt (No.79)
      #ebb996
      ΔE = 3.940 / LRV ≈ 54.6%
  62. Kansai Paint

    1. Peach
      #eeccac
      ΔE = 4.003 / LRV ≈ 64.3%
  63. Bristol

    1. Rockmelon / P043-W3
      #ffc493
      ΔE = 4.020 / LRV ≈ 62.9%
    2. Sandy Peach / P042-W3
      #ffcfa2
      ΔE = 4.644 / LRV ≈ 68.5%
  64. Focoltone

    1. 5006
      #f6c1aa
      ΔE = 4.032 / LRV ≈ 60.6%
    2. 4056
      #f7ccb8
      ΔE = 5.112 / LRV ≈ 66.4%
  65. Tollens

    1. T2112-2
      #e6bf9a
      ΔE = 4.058 / LRV ≈ 56.4%
    2. TF220-2
      #ebba9e
      ΔE = 4.077 / LRV ≈ 55.3%
  66. New Look

    1. Casual Charm / F25-07
      #e5c2a9
      ΔE = 4.219 / LRV ≈ 58.1%
  67. Natural Color System / NCS

    1. S 1515-Y40R
      #fcbf8e
      ΔE = 4.309 / LRV ≈ 59.9%
    2. S 0520-Y80R
      #ffcfb6
      ΔE = 4.938 / LRV ≈ 69.3%
  68. Chrysler

    1. Sahara Beige
      #e9caad
      ΔE = 4.397 / LRV ≈ 62.6%
    2. Nassau Beige
      #e9caaa
      ΔE = 4.486 / LRV ≈ 62.5%
  69. Benjamin Moore

    1. Careless Whispers / 1214
      #e9c7b1
      ΔE = 4.431 / LRV ≈ 61.3%
    2. Apricot Beige / 1205
      #e3c2ac
      ΔE = 4.952 / LRV ≈ 57.9%
  70. Dulux

    1. 60YR 65/196
      #f3c7b3
      ΔE = 4.520 / LRV ≈ 63.2%
    2. 05YY 72/254
      #f8d1aa
      ΔE = 4.834 / LRV ≈ 68.5%
  71. Brillux

    1. 15.12.09
      #eacbab
      ΔE = 4.543 / LRV ≈ 63.1%
    2. 21.12.09
      #ecc9b6
      ΔE = 5.050 / LRV ≈ 63.0%
  72. Scib Paints

    1. Sun warmed Tile / 8008
      #f0b798
      ΔE = 4.555 / LRV ≈ 54.7%
    2. Stoney Creek / 8634
      #f3c8b6
      ΔE = 5.199 / LRV ≈ 63.7%
  73. Caparol

    1. 05/12
      #f4c4b0
      ΔE = 4.586 / LRV ≈ 61.9%
    2. Malaga 5
      #e0bca0
      ΔE = 5.155 / LRV ≈ 54.4%
  74. Diamond Vogel

    1. Weekend Retreat / 0035
      #e7c5b0
      ΔE = 4.684 / LRV ≈ 60.1%
    2. Autumn Wind / 1034
      #f8d2b8
      ΔE = 5.224 / LRV ≈ 69.5%
  75. Pantone / PMS

    1. Skin Tone 3
      #eeceb3
      ΔE = 4.704 / LRV ≈ 65.6%
    2. Skin Tone 5
      #e5c298
      ΔE = 5.241 / LRV ≈ 57.5%
  76. Berger

    1. Baltic Amber / 7984
      #fcc996
      ΔE = 4.705 / LRV ≈ 64.7%
    2. orange Nectar / 8024
      #ffbb9d
      ΔE = 4.964 / LRV ≈ 59.2%
  77. Pascol

    1. Hot Sand PH150
      #f3ccb7
      ΔE = 4.755 / LRV ≈ 65.7%
  78. Beckers

    1. Aprikos 657 / 0619-Y42R
      #f8d2b2
      ΔE = 4.842 / LRV ≈ 69.3%
  79. Glidden

    1. Coral Cove / 60YR 57/216
      #f0bfab
      ΔE = 4.895 / LRV ≈ 58.7%
    2. Starfish / PPG1069-3
      #e5bca5
      ΔE = 4.945 / LRV ≈ 55.3%
  80. Ford

    1. Light Fawn
      #e8cbae
      ΔE = 4.895 / LRV ≈ 62.9%
    2. Champagne
      #e1c2a0
      ΔE = 5.182 / LRV ≈ 57.1%
  81. California Paints

    1. DE 5213 - Seasonal Beige
      #e6b99f
      ΔE = 4.939 / LRV ≈ 54.0%
    2. DE 5241 - Sicilian Villa
      #fcc792
      ΔE = 5.001 / LRV ≈ 63.6%
  82. Disney

    1. 1A-40-2 Fluff and Stuff
      #edceb5
      ΔE = 4.981 / LRV ≈ 65.5%

Symulacja Daltonizmu

Monochromacy

Dichromacy

Trichromacy

#f6c4a1 HTML & CSS Przykłady

#f6c4a1 pierwszoplanowy

Potrzeba jest matką wynalazków.

<p style="color: #f6c4a1">…</p>

#f6c4a1 tło

W zdrowym ciele, zdrowy duch.

<p style="background-color: #f6c4a1">…</p>

#f6c4a1 cień tekstu

Szczęście jest pomiędzy ustami i brzegiem kielicha.

<p style="text-shadow: 0.1em 0.1em 0.15em #f6c4a1">…</p>

Wykresy Kompozycji

Przestrzenie kolorów

Dziesiątkowy
16172193
Dwójkowy
11110110, 11000100, 10100001
Hexadecimal
#f6c4a1
LRV
≈ 61.6%
Najbliższy krótki kolor szesnastkowy
#fca ΔE = 2.985
RGB
rgb(246, 196, 161)
RGBA
rgba(246, 196, 161, 1.0)
rg chromatyczności
r: 0.408, g: 0.325, b: 0.267
RYB
czerwony: 96.471%, żółty: 86.471%, niebieski: 63.137%
Android / android.graphics.Color
-605023 / 0xfff6c4a1
HSL
hsl(25, 83%, 80%)
HSLA
hsla(25, 83%, 80%, 1.0)
HSV / HSB
barwa: 25° (24.706), nasycenie: 35% (0.346), wartość: 96% (0.965)
HSP
barwa: 24.706, nasycenie: 34.553%, postrzegana jasność: 81.884%
HSLuv (HUSL)
H: 41.945, S: 78.304, L: 82.726
Cubehelix
H: 19.693, S: 0.789, L: 0.812
TSL
T: 3.391, S: 0.101, L: 0.812
CMYK
cyjan: 0% (0.000), magenta: 20% (0.203), żółty: 35% (0.346), czarna: 4% (0.035)
CMY
cyjan: 4% (0.035), magenta: 23% (0.231), żółty: 37% (0.369)
XYZ
X: 64.181, Y: 61.649, Z: 42.230
xyY
x: 0.382, y: 0.367, Y: 61.649
CIELab
L: 82.726, a: 13.112, b: 24.364
CIELuv
L: 82.726, u: 34.715, v: 31.197
CIELCH / LCHab
L: 82.726, C: 27.668, H: 61.712
CIELUV / LCHuv
L: 82.726, C: 46.673, H: 41.945
Hunter-Lab
L: 78.517, a: 8.503, b: 23.073
CIECAM02
J: 78.078, C: 24.120, h: 55.327, Q: 174.090, M: 21.092, s: 34.808, H: 47.033
OSA-UCS
lekkość: -9.997, żółty: 3.531, zielony: -2.204
LMS
L: 66.658, M: 59.749, S: 42.560
YCbCr
Y: 193.784, Cb: 105.235, Cr: 152.435
YCgCo
Y: 199.750, Cg: -3.750, Co: 82.750
YDbDr
Y: 206.960, Db: -69.155, Dr: -74.245
YPbPr
Y: 204.130, Pb: -23.250, Pr: 26.610
xvYCC
Y: 191.312, Cb: 107.576, Cr: 151.375
YIQ
Y: 206.960, I: 41.030, Q: -0.317
YUV
Y: 206.960, U: -22.615, V: 34.250
System Koloru Munsell
5YR 8/4 ΔE = 2.388
Kolor marki
Southwest Airlines Sunrise Yellow ΔE = 13.530

Przypadkowe Kolory

Czerwony

Zielony

Niebieski