Recognised as Colour
#81E3BF
- #81E3BF
- Cyan
- Light
- Nearest: Medium aquamarine
#81E3BF is a cyan with RGB values 129, 227, 191 and HSL 158°, 64%, 70%. It is a light colour, so black text on it reaches 13.7:1 contrast (AAA for normal text). The nearest named colour is Medium aquamarine.
Colour values
#81E3BF#81E3BF
HEX#81E3BF
RGBrgb(129, 227, 191)
RGB (0–1)0.5059, 0.8902, 0.749
RGB percentages50.6%, 89%, 74.9%
HSLhsl(158, 63.6%, 69.8%)
HSV / HSBhsv(158, 43.2%, 89%)
CMYK43.2%, 0%, 15.9%, 11%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,512,447
CSS custom property--colour: #81E3BF;
Brightness & contrast
Relative luminance0.63367WCAG 2.x, 0 is black and 1 is white
Perceived brightness198.4 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.67:1
Contrast with white1.54:1WCAG normal text: Fail
Contrast with black13.67:1WCAG normal text: AAA
Greyscale equivalent#CCCCCC
Inverted#7E1C40
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.54:1WCAG large text: Fail
Contrast with black, large text13.67:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#E381A5
Analogous#81E38E, #81D6E3
Triadic#BF81E3, #E3BF81
Split complementary#E381D6, #E38E81
Tetradic#8E81E3, #E381A5, #D6E381
Tints, shades & saturation
Channel breakdown
R129
G227
B191
Red129 (50.6%)
Green227 (89%)
Blue191 (74.9%)
Hue157.96°
Saturation (HSL)63.64%
Lightness69.8%
Dominant channelGreen
Hex per channelR 81 · G E3 · B BF
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Harmonies
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