Recognised as Colour
#81FFEB
- #81FFEB
- Cyan
- Light
- Nearest: Aquamarine
#81FFEB is a cyan with RGB values 129, 255, 235 and HSL 170°, 100%, 75%. It is a light colour, so black text on it reaches 17.4:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.
Colour values
#81FFEB#81FFEB
HEX#81FFEB
RGBrgb(129, 255, 235)
RGB (0–1)0.5059, 1, 0.9216
RGB percentages50.6%, 100%, 92.2%
HSLhsl(170.5, 100%, 75.3%)
HSV / HSBhsv(170.5, 49.4%, 100%)
CMYK49.4%, 0%, 7.8%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,519,659
CSS custom property--colour: #81FFEB;
Brightness & contrast
Relative luminance0.82185WCAG 2.x, 0 is black and 1 is white
Perceived brightness222.4 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17.44:1
Contrast with white1.2:1WCAG normal text: Fail
Contrast with black17.44:1WCAG normal text: AAA
Greyscale equivalent#E3E3E3
Inverted#7E0014
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.2:1WCAG large text: Fail
Contrast with black, large text17.44:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#FF8195
Analogous#81FFAC, #81D4FF
Triadic#EB81FF, #FFEB81
Split complementary#FF81D4, #FFAC81
Tetradic#AC81FF, #FF8195, #D4FF81
Tints, shades & saturation
Channel breakdown
R129
G255
B235
Red129 (50.6%)
Green255 (100%)
Blue235 (92.2%)
Hue170.48°
Saturation (HSL)100%
Lightness75.29%
Dominant channelGreen
Hex per channelR 81 · G FF · B EB
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