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Recognised as Colour

#81FFC5

  • #81FFC5
  • Cyan
  • Light
  • Nearest: Aquamarine

#81FFC5 is a cyan with RGB values 129, 255, 197 and HSL 152°, 100%, 75%. It is a light colour, so black text on it reaches 17:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.

Colour values

#81FFC5#81FFC5
HEX#81FFC5
RGBrgb(129, 255, 197)
RGB (0–1)0.5059, 1, 0.7725
RGB percentages50.6%, 100%, 77.3%
HSLhsl(152.4, 100%, 75.3%)
HSV / HSBhsv(152.4, 49.4%, 100%)
CMYK49.4%, 0%, 22.7%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,519,621
CSS custom property--colour: #81FFC5;

Brightness & contrast

Relative luminance0.80218WCAG 2.x, 0 is black and 1 is white
Perceived brightness218.1 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17.04:1
Contrast with white1.23:1WCAG normal text: Fail
Contrast with black17.04:1WCAG normal text: AAA
Greyscale equivalent#E0E0E0
Inverted#7E003A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FCEFC2no red cones; affects about 1% of men; ΔE 46.2 from the original
Deuteranopia#E9E2C9no green cones; the most common form, about 1% of men; ΔE 46.7 from the original
Tritanopia#59FFEFno blue cones; rare, and affects men and women equally; ΔE 22.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.23:1WCAG large text: Fail
Contrast with black, large text17.04:1WCAG large text: AAA

Named colours

Aquamarine · ΔE 7.8Light green · ΔE 20.6Medium aquamarine · ΔE 20.8Pale green · ΔE 21.5Turquoise · ΔE 23.9Medium seagreen · ΔE 27.5
Nearest named CSS colourAquamarine (#7FFFD4)ΔE 7.84, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF81BB
Analogous#81FF86, #81FAFF
Triadic#C581FF, #FFC581
Split complementary#FF81FA, #FF8681
Tetradic#8681FF, #FF81BB, #FAFF81

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#E7FFF4
Lighter +10%#B4FFDC
Darker −10%#4EFFAE
Darker −20%#1BFF96
Darker −30%#00E77D
Darker −40%#00B461
More saturated +25%#81FFC5
Less saturated −25%#91EFC4

Channel breakdown

R129
G255
B197
Red129 (50.6%)
Green255 (100%)
Blue197 (77.3%)
Hue152.38°
Saturation (HSL)100%
Lightness75.29%
Dominant channelGreen
Hex per channelR 81 · G FF · B C5

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Every value on this page was computed from “81ffc5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.