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Colour

#287D83

  • #287D83
  • Cyan
  • Dark
  • Nearest: Teal

#287D83 is a cyan with RGB values 40, 125, 131 and HSL 184°, 53%, 34%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Teal.

Colour values

#287D83#287D83
HEX#287D83
RGBrgb(40, 125, 131)
RGB (0–1)0.1569, 0.4902, 0.5137
RGB percentages15.7%, 49%, 51.4%
HSLhsl(184, 53.2%, 33.5%)
HSV / HSBhsv(184, 69.5%, 51.4%)
CMYK69.5%, 4.6%, 0%, 48.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,653,571
CSS custom property--colour: #287D83;

Brightness & contrast

Relative luminance0.16757WCAG 2.x, 0 is black and 1 is white
Perceived brightness107.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.83:1
Contrast with white4.83:1WCAG normal text: AA
Contrast with black4.35:1WCAG normal text: Fail
Greyscale equivalent#6B6B6B
Inverted#D7827C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#737883no red cones; affects about 1% of men; ΔE 23.7 from the original
Deuteranopia#666E83no green cones; the most common form, about 1% of men; ΔE 24.7 from the original
Tritanopia#00827Fno blue cones; rare, and affects men and women equally; ΔE 8.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.83:1WCAG large text: AAA
Contrast with black, large text4.35:1WCAG large text: AA

Named colours

Teal · ΔE 6.5Dark cyan · ΔE 9.1Cadetblue · ΔE 13.9Slate grey · ΔE 21.1Dark slate grey · ΔE 21.2Light slate grey · ΔE 22
Nearest named CSS colourTeal (#008080)ΔE 6.51, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#832E28
Analogous#28835B, #285083
Triadic#83287D, #7D8328
Split complementary#832850, #835B28
Tetradic#5B2883, #832E28, #508328

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#98DBDF
Lighter +30%#71CDD3
Lighter +20%#49BFC8
Lighter +10%#34A2AA
Darker −10%#1C585C
Darker −20%#103235
Darker −30%#040D0E
Darker −40%#000000
More saturated +25%#139098
Less saturated −25%#3D6A6E

Channel breakdown

R40
G125
B131
Red40 (15.7%)
Green125 (49%)
Blue131 (51.4%)
Hue183.96°
Saturation (HSL)53.22%
Lightness33.53%
Dominant channelBlue
Hex per channelR 28 · G 7D · B 83

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Every value on this page was computed from “287d83” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.