Colour
#55FFE3
- #55FFE3
- Cyan
- Light
- Nearest: Aquamarine
#55FFE3 is a cyan with RGB values 85, 255, 227 and HSL 170°, 100%, 67%. It is a light colour, so black text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.
Colour values
#55FFE3#55FFE3
HEX#55FFE3
RGBrgb(85, 255, 227)
RGB (0–1)0.3333, 1, 0.8902
RGB percentages33.3%, 100%, 89%
HSLhsl(170.1, 100%, 66.7%)
HSV / HSBhsv(170.1, 66.7%, 100%)
CMYK66.7%, 0%, 11%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,636,067
CSS custom property--colour: #55FFE3;
Brightness & contrast
Relative luminance0.78997WCAG 2.x, 0 is black and 1 is white
Perceived brightness215 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.8:1
Contrast with white1.25:1WCAG normal text: Fail
Contrast with black16.8:1WCAG normal text: AAA
Greyscale equivalent#D9D9D9
Inverted#AA001C
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.25:1WCAG large text: Fail
Contrast with black, large text16.8:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#FF5571
Analogous#55FF8E, #55C6FF
Triadic#E355FF, #FFE355
Split complementary#FF55C6, #FF8E55
Tetradic#8E55FF, #FF5571, #C6FF55
Tints, shades & saturation
Channel breakdown
R85
G255
B227
Red85 (33.3%)
Green255 (100%)
Blue227 (89%)
Hue170.12°
Saturation (HSL)100%
Lightness66.67%
Dominant channelGreen
Hex per channelR 55 · G FF · B E3
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