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Colour

#81CEB5

  • #81CEB5
  • Cyan
  • Light
  • Nearest: Medium aquamarine

#81CEB5 is a cyan with RGB values 129, 206, 181 and HSL 161°, 44%, 66%. It is a light colour, so black text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Medium aquamarine.

Colour values

#81CEB5#81CEB5
HEX#81CEB5
RGBrgb(129, 206, 181)
RGB (0–1)0.5059, 0.8078, 0.7098
RGB percentages50.6%, 80.8%, 71%
HSLhsl(160.5, 44%, 65.7%)
HSV / HSBhsv(160.5, 37.4%, 80.8%)
CMYK37.4%, 0%, 12.1%, 19.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,507,061
CSS custom property--colour: #81CEB5;

Brightness & contrast

Relative luminance0.52146WCAG 2.x, 0 is black and 1 is white
Perceived brightness183.4 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.43:1
Contrast with white1.84:1WCAG normal text: Fail
Contrast with black11.43:1WCAG normal text: AAA
Greyscale equivalent#BCBCBC
Inverted#7E314A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#CAC5B4no red cones; affects about 1% of men; ΔE 28.6 from the original
Deuteranopia#BDBBB7no green cones; the most common form, about 1% of men; ΔE 29.6 from the original
Tritanopia#6BCFC7no blue cones; rare, and affects men and women equally; ΔE 10.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.84:1WCAG large text: Fail
Contrast with black, large text11.43:1WCAG large text: AAA

Named colours

Medium aquamarine · ΔE 9.7Dark seagreen · ΔE 15.2Medium turquoise · ΔE 15.5Turquoise · ΔE 17.6Light seagreen · ΔE 18.1Pale turquoise · ΔE 19.6
Nearest named CSS colourMedium aquamarine (#66CDAA)ΔE 9.66, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CE819A
Analogous#81CE8F, #81C0CE
Triadic#B581CE, #CEB581
Split complementary#CE81C0, #CE8F81
Tetradic#8F81CE, #CE819A, #C0CE81

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EFF9F6
Lighter +20%#CAEBE0
Lighter +10%#A6DCCB
Darker −10%#5CC09F
Darker −20%#41A886
Darker −30%#338369
Darker −40%#255E4C
More saturated +25%#6BE4BD
Less saturated −25%#97B8AD

Channel breakdown

R129
G206
B181
Red129 (50.6%)
Green206 (80.8%)
Blue181 (71%)
Hue160.52°
Saturation (HSL)44%
Lightness65.69%
Dominant channelGreen
Hex per channelR 81 · G CE · B B5

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Every value on this page was computed from “81ceb5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.