Encycolorpedia

#e6e5cf Hex-Farbcode

#e6e5cf Paint ChipDer hexadezimale Farbcode #e6e5cf ist ein sehr hell Farbton von Gelb. Im RGB-Farbmodell enthält #e6e5cf 90.2% Rot, 89.8% Grün und 81.18% Blau. Im HSL-Farbraum hat #e6e5cf einen Farbtonwinkel von 57° (Grad), 32% Sättigung und 86% Helligkeit. Diese Farbe hat eine ungefähre Wellenlänge von 571.09 nm.

Farbvariationen

Benannte Farben

Farbschemas

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

Farbtöne und Schattierungen

#e6e5cf nach Schwarz

  1. #e6e5cf
  2. #bcbba9
  3. #939285
  4. #6c6c62
  5. #484741
  6. #262623
  7. #000000

Farben

Ähnliche Farben

  1. Coronado Paint

    1. ★ 7788 - A New Leaf
      #e7e5cf
      ΔE = 0.325 / LRV ≈ 77.5%
    2. ★ 7796 - Arbor Field
      #e7e3c9
      ΔE = 1.757 / LRV ≈ 76.1%
  2. Sherwin-Williams

    1. ★ Sprout - 6427
      #e4e4ce
      ΔE = 0.532 / LRV ≈ 76.4%
    2. White Willow - 6728
      #e6ebd4
      ΔE = 2.504 / LRV ≈ 81.0%
  3. Beckers

    1. ★ Korn 632 / S 1010-Y10R
      #e8e5ce
      ΔE = 0.727 / LRV ≈ 77.7%
    2. ★ Sandkorn 590 / S 0909-Y06R
      #eae9d3
      ΔE = 1.407 / LRV ≈ 80.5%
  4. British Standard

    1. ★ BS 4800 12 B 15 - Sea foam / Seafoam
      #e5e4d0
      ΔE = 0.743 / LRV ≈ 76.7%
  5. Little Greene

    1. ★ Mirror
      #e5e4d0
      ΔE = 0.743 / LRV ≈ 76.7%
    2. Rolling Fog Pale
      #eee8d7
      ΔE = 2.850 / LRV ≈ 80.8%
  6. Bristol

    1. ★ Green Blush / P013-L5
      #e8e7d0
      ΔE = 0.757 / LRV ≈ 78.9%
    2. ★ White Smoke / P239-N1
      #ebe7d4
      ΔE = 1.738 / LRV ≈ 79.6%
  7. Diamond Vogel

    1. ★ Translucent Vision / 0404
      #e5e6d1
      ΔE = 0.758 / LRV ≈ 77.9%
    2. Natural Whisper / 0383
      #efe8d1
      ΔE = 2.423 / LRV ≈ 80.7%
  8. Focoltone

    1. ★ 4036
      #e4e3ce
      ΔE = 0.758 / LRV ≈ 75.9%
  9. Nippon Paint

    1. ★ Soft Greetings / NP BGG 1740 P
      #e5e5cd
      ΔE = 0.760 / LRV ≈ 77.1%
    2. Rusting Leaf / NP OW 1080 P
      #dde5d0
      ΔE = 2.927 / LRV ≈ 76.0%
  10. Kelly-Moore

    1. ★ Arbor Field / KM3409-1
      #e8e7d2
      ΔE = 0.808 / LRV ≈ 79.0%
    2. ★ Spring Frolic / KM3402-1
      #e1e2ca
      ΔE = 1.566 / LRV ≈ 74.7%
  11. Laura Ashley

    1. ★ 10-6 Pale Birch
      #e4e4cc
      ΔE = 0.892 / LRV ≈ 76.3%
    2. ★ 907 Olive 1
      #eae3d0
      ΔE = 2.208 / LRV ≈ 77.0%
  12. Valspar Paint

    1. ★ White Scallion
      #e8e4ce
      ΔE = 0.959 / LRV ≈ 77.1%
    2. ★ Innocent Ivory W15A
      #e5e1cb
      ΔE = 1.520 / LRV ≈ 74.8%
  13. Ralph Lauren

    1. ★ Washed Down White / UL57
      #e8e5d1
      ΔE = 0.960 / LRV ≈ 77.8%
    2. Egret / RLWW212
      #e3decc
      ΔE = 2.800 / LRV ≈ 72.9%
  14. Peintures MF

    1. ★ Banff Springs
      #e4e3cb
      ΔE = 1.023 / LRV ≈ 75.7%
    2. ★ Fortuna
      #e7e7d5
      ΔE = 1.584 / LRV ≈ 78.9%
  15. Australian Standard AS2700

    1. ★ Y31 Lily Green
      #e2e3cd
      ΔE = 1.064 / LRV ≈ 75.5%
    2. Y35 Off White
      #f1e9d4
      ΔE = 2.990 / LRV ≈ 81.7%
  16. Brighto Paints

    1. ★ 9048 Badami
      #e7e3cd
      ΔE = 1.065 / LRV ≈ 76.3%
    2. ★ 5-13-2 Cream Torte
      #e2e2d0
      ΔE = 1.735 / LRV ≈ 75.1%
  17. Jotun

    1. ★ 8196 / Essens
      #e7e3cd
      ΔE = 1.065 / LRV ≈ 76.3%
    2. 1625 / Sjel
      #ece8d7
      ΔE = 2.432 / LRV ≈ 80.5%
  18. Behr

    1. ★ Lime Mist EIC-9
      #e4e3d0
      ΔE = 1.197 / LRV ≈ 76.0%
    2. ★ First Day PEC-26
      #eae5d3
      ΔE = 1.938 / LRV ≈ 78.2%
  19. Berger

    1. ★ Arbar Field / 7796
      #e9e8d0
      ΔE = 1.208 / LRV ≈ 79.6%
    2. Spring Frolic / 7787
      #e0e2c7
      ΔE = 2.402 / LRV ≈ 74.4%
  20. Pratt & Lambert

    1. ★ Candle Green 17-1
      #e4e5cc
      ΔE = 1.215 / LRV ≈ 76.9%
    2. Spirit's Mist 18-2
      #e5e9ce
      ΔE = 2.445 / LRV ≈ 79.4%
  21. California Paints

    1. ★ DEW 355 - Tea Green
      #e8e8d4
      ΔE = 1.281 / LRV ≈ 79.6%
    2. DE 5533 - Whispering Rain
      #ececda
      ΔE = 2.861 / LRV ≈ 82.9%
  22. Dunn-Edwards

    1. ★ Green Tea / 2115
      #e8e8d4
      ΔE = 1.281 / LRV ≈ 79.6%
    2. Antique White / 2220
      #ece6d5
      ΔE = 2.533 / LRV ≈ 79.2%
  23. Earthpaint

    1. ★ 5-17-1 Bahamas
      #e4e2ca
      ΔE = 1.283 / LRV ≈ 75.2%
    2. ★ 4-18-1 Cucumber Slice
      #e6e7cb
      ΔE = 2.159 / LRV ≈ 78.3%
  24. Cloverdale Paint

    1. ★ Hyde Park / 8420
      #e2e4d0
      ΔE = 1.289 / LRV ≈ 76.2%
    2. Villa Grove / 7691
      #dce1c8
      ΔE = 2.874 / LRV ≈ 73.2%
  25. Rodda Paint

    1. ★ Hyde Park 8420
      #e2e4d0
      ΔE = 1.289 / LRV ≈ 76.2%
    2. ★ Gardeners Delight 7692
      #e6e9d4
      ΔE = 1.736 / LRV ≈ 79.9%
  26. AMC

    1. ★ Champagne White
      #e6e3d0
      ΔE = 1.300 / LRV ≈ 76.3%
    2. Glacier White
      #e7e6d7
      ΔE = 2.448 / LRV ≈ 78.5%
  27. Taubmans

    1. ★ Silver Gum / T08 180-1
      #e8e3ce
      ΔE = 1.374 / LRV ≈ 76.6%
    2. Kindness / T10 51H
      #e3e8d7
      ΔE = 2.704 / LRV ≈ 79.0%
  28. Color Truck Guide

    1. ★ Ce-Sa009.01
      #e6e2ce
      ΔE = 1.414 / LRV ≈ 75.7%
    2. Ce-Sa008.02
      #eae9d9
      ΔE = 2.579 / LRV ≈ 80.8%
  29. Scib Paints

    1. ★ A new leaf / 7788
      #e8e9d4
      ΔE = 1.474 / LRV ≈ 80.2%
    2. Milk Paint / OW 130
      #eee4cc
      ΔE = 2.916 / LRV ≈ 78.0%
  30. Marston & Langinger

    1. ★ Canvas
      #ebe8d0
      ΔE = 1.475 / LRV ≈ 79.9%
    2. ★ Creamware
      #e7e5d4
      ΔE = 1.751 / LRV ≈ 77.8%
  31. Albany Paint

    1. ★ Seafoam
      #e4e1ca
      ΔE = 1.475 / LRV ≈ 74.6%
    2. Stone Cross
      #efe9d6
      ΔE = 2.675 / LRV ≈ 81.5%
  32. Volkswagen

    1. ★ Arctic White
      #e5e6cc
      ΔE = 1.494 / LRV ≈ 77.6%
    2. Cloud White
      #ebe6d7
      ΔE = 2.881 / LRV ≈ 79.2%
  33. Crown Diamond

    1. ★ 7388-21 Orkney Islands
      #e6e3d1
      ΔE = 1.578 / LRV ≈ 76.4%
    2. ★ 7268-21 Ghostly Lichen
      #eee8d1
      ΔE = 2.136 / LRV ≈ 80.5%
  34. Pantone / PMS

    1. ★ Pastel 9581
      #e8e9d5
      ΔE = 1.612 / LRV ≈ 80.2%
    2. Pastel 9142
      #efead5
      ΔE = 2.468 / LRV ≈ 82.0%
  35. ICI Paints

    1. ★ Springwater 10GY 83/100
      #e3e7d0
      ΔE = 1.625 / LRV ≈ 78.0%
    2. ★ Inverness 10GY 83/075
      #e6e8d5
      ΔE = 1.678 / LRV ≈ 79.3%
  36. Habitat

    1. ★ Canvas
      #e9e3ce
      ΔE = 1.660 / LRV ≈ 76.7%
  37. Sico

    1. ★ 6144-21 Queen of the Night
      #e6e1cb
      ΔE = 1.686 / LRV ≈ 75.0%
    2. ★ 6143-21 Ghostly Lichen
      #eee8d1
      ΔE = 2.136 / LRV ≈ 80.5%
  38. Olympic

    1. ★ Lime Meringue B68-1
      #e7e9d5
      ΔE = 1.708 / LRV ≈ 80.1%
    2. ★ Soothing Aloe A68-2
      #e7ead0
      ΔE = 2.269 / LRV ≈ 80.4%
  39. GM / General Motors

    1. ★ Canyon Gray
      #e7e5ca
      ΔE = 1.733 / LRV ≈ 77.3%
    2. ★ Olive Silver
      #e3e0ca
      ΔE = 1.734 / LRV ≈ 73.9%
  40. Tollens

    1. ★ T2182-4
      #e6e4d3
      ΔE = 1.744 / LRV ≈ 77.0%
    2. T2187-4
      #eae8d9
      ΔE = 2.751 / LRV ≈ 80.2%
  41. Resene

    1. ★ Half Wheatfield Y92-018-086
      #eae4d0
      ΔE = 1.750 / LRV ≈ 77.5%
    2. ★ Quarter Parchment Y91-016-088
      #e6e1cf
      ΔE = 2.142 / LRV ≈ 75.2%
  42. Zoffany

    1. ★ Half Paris Grey
      #e4e2c8
      ΔE = 1.779 / LRV ≈ 75.1%
    2. ★ Mist
      #e9e8d6
      ΔE = 1.794 / LRV ≈ 79.9%
  43. Natural Color System / NCS

    1. ★ S 1005-G20Y
      #e9ead5
      ΔE = 1.788 / LRV ≈ 81.0%
    2. S 1005-G10Y
      #eaebda
      ΔE = 2.779 / LRV ≈ 82.0%
  44. Crown Paint

    1. ★ Apple Mist
      #e7e8d6
      ΔE = 1.820 / LRV ≈ 79.6%
    2. Parsonage Cream
      #eae2ca
      ΔE = 2.374 / LRV ≈ 76.2%
  45. Brillux

    1. ★ 96.12.03
      #ece8cf
      ΔE = 1.830 / LRV ≈ 80.1%
    2. ★ 87.06.06
      #dfe2ca
      ΔE = 2.004 / LRV ≈ 74.3%
  46. Designers Guild

    1. ★ Vanilla
      #ede8d1
      ΔE = 1.861 / LRV ≈ 80.3%
  47. Kansai Paint

    1. ★ Warm Grey
      #e4e1cf
      ΔE = 1.902 / LRV ≈ 74.8%
    2. Silk Stone
      #ebe2cf
      ΔE = 2.817 / LRV ≈ 76.6%
  48. Duron

    1. ★ Ancient Marble
      #e3e0cd
      ΔE = 1.953 / LRV ≈ 74.1%
  49. Levis

    1. ★ Shady Yellow B20
      #ebe4cc
      ΔE = 2.002 / LRV ≈ 77.5%
    2. Shady Yellow C20
      #ece9d9
      ΔE = 2.758 / LRV ≈ 81.1%
  50. Porter Paints

    1. ★ Abbey White / 511-3
      #ece5d0
      ΔE = 2.004 / LRV ≈ 78.4%
    2. Vanilla Love / ATC-88
      #e7e0cc
      ΔE = 2.404 / LRV ≈ 74.7%
  51. PPG Pittsburgh Paints

    1. ★ Abbey White 511-3
      #ece5d0
      ΔE = 2.004 / LRV ≈ 78.4%
    2. Lime Twist 210-2
      #ebebd1
      ΔE = 2.371 / LRV ≈ 81.7%
  52. Dulux

    1. ★ 90YY 75/120
      #e2e1c7
      ΔE = 2.047 / LRV ≈ 74.1%
    2. 10GY 74/087
      #dde0cd
      ΔE = 2.579 / LRV ≈ 73.1%
  53. Martha Stewart Living

    1. ★ Ivory H10
      #edead2
      ΔE = 2.069 / LRV ≈ 81.5%
    2. Camellia H19
      #ede4d0
      ΔE = 2.680 / LRV ≈ 78.0%
  54. Disney

    1. ★ 4A-30-2 Tiddely Pom
      #e6e2d1
      ΔE = 2.096 / LRV ≈ 75.8%
    2. ★ C1-12 The Claw
      #e1e7cf
      ΔE = 2.272 / LRV ≈ 77.7%
  55. McCormick Paints

    1. ★ 101 Amber White
      #eaebd3
      ΔE = 2.113 / LRV ≈ 81.6%
  56. Farrow & Ball

    1. ★ Pavilion Blue / 252
      #ebebd3
      ΔE = 2.113 / LRV ≈ 81.8%
    2. Skimming Stone / 241
      #e9e2d0
      ΔE = 2.447 / LRV ≈ 76.3%
  57. Ford

    1. ★ White
      #e9e3c9
      ΔE = 2.116 / LRV ≈ 76.5%
  58. CIL

    1. ★ White Mantle
      #e2e2c7
      ΔE = 2.150 / LRV ≈ 74.7%
    2. Pine Scent
      #dde1cd
      ΔE = 2.454 / LRV ≈ 73.6%
  59. Sto

    1. ★ 31237
      #e7e2d1
      ΔE = 2.251 / LRV ≈ 76.0%
    2. 36215
      #e1e6d6
      ΔE = 2.851 / LRV ≈ 77.5%
  60. Teknos

    1. ★ GBI005
      #edebd6
      ΔE = 2.260 / LRV ≈ 82.3%
  61. General Paint

    1. ★ Tree Bark / CL 2911W
      #ece5d2
      ΔE = 2.265 / LRV ≈ 78.5%
    2. Summit / CLW 1025W
      #ecebd9
      ΔE = 2.604 / LRV ≈ 82.3%
  62. RAL

    1. ★ RAL 1013 / Oyster white
      #eae6ca
      ΔE = 2.281 / LRV ≈ 78.4%
  63. Jedynka

    1. ★ Pd 1134
      #dfe4cb
      ΔE = 2.290 / LRV ≈ 75.5%
    2. Csábító Mandula
      #ece3d1
      ΔE = 2.956 / LRV ≈ 77.4%
  64. Evonik-Degussa

    1. OW19 2P Eggshell
      #e3e1d1
      ΔE = 2.384 / LRV ≈ 74.8%
    2. 742
      #dee1d1
      ΔE = 2.889 / LRV ≈ 74.0%
  65. Diamond Paint

    1. Antique White
      #eee6cf
      ΔE = 2.388 / LRV ≈ 79.3%
  66. Dutch Boy

    1. Hotel Linen
      #e9e3d2
      ΔE = 2.390 / LRV ≈ 76.9%
    2. Insight
      #e9e1cc
      ΔE = 2.419 / LRV ≈ 75.5%
  67. UNKNOWN

    1. Moto-Guzzi Bianco / GUZ.SA002.0
      #e4dfcc
      ΔE = 2.397 / LRV ≈ 73.6%
  68. Benjamin Moore

    1. French Canvas / 1514
      #e6e4d5
      ΔE = 2.416 / LRV ≈ 77.1%
    2. Silken Pine / 2144-50
      #e1e4d5
      ΔE = 2.776 / LRV ≈ 76.3%
  69. Dupont

    1. CAS857
      #e0e4d3
      ΔE = 2.438 / LRV ≈ 76.0%
    2. CAS991
      #e8e1d1
      ΔE = 2.985 / LRV ≈ 75.6%
  70. Asian Paints

    1. Tapestry / 0972
      #e3e9d5
      ΔE = 2.511 / LRV ≈ 79.4%
  71. Sigma

    1. Orange Terra / S 1005-Y30R
      #eee7d4
      ΔE = 2.524 / LRV ≈ 80.1%
    2. Orange Terra / S 1505-Y30R
      #e5decb
      ΔE = 2.933 / LRV ≈ 73.2%
  72. Vista Paint

    1. Lovely Lace
      #efe7d0
      ΔE = 2.534 / LRV ≈ 80.1%
    2. Milk Paint
      #eee4cc
      ΔE = 2.916 / LRV ≈ 78.0%
  73. Sikkens

    1. J0.07.82
      #dde3cc
      ΔE = 2.542 / LRV ≈ 74.7%
    2. H2.07.87
      #ededd5
      ΔE = 2.780 / LRV ≈ 83.4%
  74. Nature Paint

    1. Pup
      #ede5d2
      ΔE = 2.566 / LRV ≈ 78.7%
  75. Colortrend

    1. 0425
      #e2e3d4
      ΔE = 2.566 / LRV ≈ 75.9%
    2. 0789
      #eae7c9
      ΔE = 2.860 / LRV ≈ 78.9%
  76. Homebase

    1. Soft Lime
      #e6eacf
      ΔE = 2.593 / LRV ≈ 80.2%
    2. Almond
      #f1e9d2
      ΔE = 2.932 / LRV ≈ 81.6%
  77. Sanderson

    1. Mushroom Grey Lt
      #e4dec8
      ΔE = 2.629 / LRV ≈ 72.9%
    2. Silver Dust
      #ece5d5
      ΔE = 2.940 / LRV ≈ 78.7%
  78. Federal Standard

    1. Federal Standard 27778
      #f0e9d3
      ΔE = 2.657 / LRV ≈ 81.5%
    2. Federal Standard 17778
      #f1e9d2
      ΔE = 2.932 / LRV ≈ 81.6%
  79. Glidden

    1. Elegant Lace
      #e4e0d0
      ΔE = 2.667 / LRV ≈ 74.4%
    2. Shell White
      #f0ebd8
      ΔE = 2.989 / LRV ≈ 82.9%
  80. Graham & Brown

    1. Custard Cream
      #e4dec6
      ΔE = 2.751 / LRV ≈ 72.8%
    2. Haygarth
      #e7eacd
      ΔE = 2.943 / LRV ≈ 80.2%
  81. Chrysler

    1. Warm White
      #efebd8
      ΔE = 2.798 / LRV ≈ 82.7%
  82. Tikkurila

    1. G448
      #e4e5d7
      ΔE = 2.810 / LRV ≈ 77.4%
    2. 9742
      #ece2cd
      ΔE = 2.916 / LRV ≈ 76.6%
  83. Crayola

    1. Pearl White
      #eeebd9
      ΔE = 2.811 / LRV ≈ 82.6%
  84. Caparol

    1. 005 / Str-Putz 005
      #e4e0c4
      ΔE = 2.827 / LRV ≈ 73.8%
    2. 10/11
      #f0ecd8
      ΔE = 2.983 / LRV ≈ 83.5%
  85. Audi

    1. Arktisweiss / B5, LY9D
      #e6e3d5
      ΔE = 2.842 / LRV ≈ 76.6%
    2. Magnolia Pearl / LOB9
      #efe9d7
      ΔE = 2.851 / LRV ≈ 81.5%
  86. Devoe Paint

    1. Opal / 30YY 79/053
      #eee5d2
      ΔE = 2.873 / LRV ≈ 78.9%
    2. Wentworth White / 90YY 83/036
      #efebd9
      ΔE = 2.966 / LRV ≈ 82.8%
  87. Alcro

    1. Kalk
      #dddecc
      ΔE = 2.933 / LRV ≈ 72.0%
  88. Krylon

    1. Almond
      #eee4cb
      ΔE = 3.000 / LRV ≈ 78.0%

#e6e5cf Beispiele für HTML und CSS

#e6e5cf Vordergrund

Du siehst den Wald vor lauter Bäumen nicht.

<p style="color: #e6e5cf">…</p>

#e6e5cf Hintergrund

Aus Schaden wird man klug.

<p style="background-color: #e6e5cf">…</p>

#e6e5cf Textschatten

Anfangen ist leicht, Beharren eine Kunst.

<p style="text-shadow: 0.1em 0.1em 0.15em #e6e5cf">…</p>

Farbkompositionsdiagramme

Farbräume

Dezimalzahl
15132111
Binär
11100110, 11100101, 11001111
Hexadezimal
#e6e5cf
LRV
≈ 77.4%
Naheste kurze Hexadezimalzahl
#ddc ΔE = 3.338
RGB
rgb(230, 229, 207)
RGBA
rgba(230, 229, 207, 1.0)
RG-Chromatizität
r: 0.345, g: 0.344, b: 0.311
RYB
Rot: 0.816%, Gelb: 0.902%, Blau: 0.812%
Android / android.graphics.Color
-1645105 / 0xffe6e5cf
HSL
hsl(57, 32%, 86%)
HSLA
hsla(57, 32%, 86%, 1.0)
HSV / HSB
Farbton: 57° (57.391), Sättigung: 10% (0.100), Wert: 90% (0.902)
HSP
Farbton: 57.391, Sättigung: 10.000%, wahrgenommene Helligkeit: 88.981%
HSLuv (HUSL)
H: 83.916, S: 16.896, L: 90.490
Cubehelix
H: 54.839, S: 0.404, L: 0.890
TSL
T: 1.588, S: 0.021, L: 0.889
CMYK
Cyan: 0% (0.000), Magenta: 0% (0.004), Gelb: 10% (0.100), Schwarzanteil Key: 10% (0.098)
CMY
Cyan: 10% (0.098), Magenta: 10% (0.102), Gelb: 19% (0.188)
XYZ
X: 71.914, Y: 77.367, Z: 70.164
xyY
x: 0.328, y: 0.353, Y: 77.367
CIELab
L: 90.490, a: -3.399, b: 10.855
CIELuv
L: 90.490, u: 1.785, v: 16.742
CIELCH / LCHab
L: 90.490, C: 11.375, H: 107.386
CIELUV / LCHuv
L: 90.490, C: 16.837, H: 83.916
Hunter-Lab
L: 87.959, a: -7.989, b: 14.276
CIECAM02
J: 87.028, C: 9.799, h: 105.273, Q: 183.798, M: 8.569, s: 21.593, H: 127.005
OSA-UCS
Leichtigkeit: -10.036, Gelb: 1.587, Grün: 0.632
LMS
L: 74.541, M: 81.160, S: 70.267
YCbCr
Y: 210.812, Cb: 118.194, Cr: 130.001
YCgCo
Y: 223.750, Cg: 5.250, Co: 63.250
YDbDr
Y: 226.791, Db: -29.776, Dr: -6.107
YPbPr
Y: 227.629, Pb: -11.115, Pr: 1.512
xvYCC
Y: 211.493, Cb: 118.236, Cr: 129.328
YIQ
Y: 226.791, I: 7.664, Q: -6.634
YUV
Y: 226.791, U: -9.737, V: 2.815
Munsell-Farbsystem
5GY 9/1 ΔE = 1.590
Markenfarbe
Sprint ΔE = 15.845

Zufällige Farben

Rot

Grün

Blau