Recognised as Colour
#66E3D2
- #66E3D2
- Cyan
- Light
- Nearest: Turquoise
#66E3D2 is a cyan with RGB values 102, 227, 210 and HSL 172°, 69%, 65%. It is a light colour, so black text on it reaches 13.5:1 contrast (AAA for normal text). The nearest named colour is Turquoise.
Colour values
#66E3D2#66E3D2
HEX#66E3D2
RGBrgb(102, 227, 210)
RGB (0–1)0.4, 0.8902, 0.8235
RGB percentages40%, 89%, 82.4%
HSLhsl(171.8, 69.1%, 64.5%)
HSV / HSBhsv(171.8, 55.1%, 89%)
CMYK55.1%, 0%, 7.5%, 11%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,742,994
CSS custom property--colour: #66E3D2;
Brightness & contrast
Relative luminance0.62416WCAG 2.x, 0 is black and 1 is white
Perceived brightness195.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.48:1
Contrast with white1.56:1WCAG normal text: Fail
Contrast with black13.48:1WCAG normal text: AAA
Greyscale equivalent#C7C7C7
Inverted#991C2D
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.56:1WCAG large text: Fail
Contrast with black, large text13.48:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#E36677
Analogous#66E394, #66B5E3
Triadic#D266E3, #E3D266
Split complementary#E366B5, #E39466
Tetradic#9466E3, #E36677, #B5E366
Tints, shades & saturation
Channel breakdown
R102
G227
B210
Red102 (40%)
Green227 (89%)
Blue210 (82.4%)
Hue171.84°
Saturation (HSL)69.06%
Lightness64.51%
Dominant channelGreen
Hex per channelR 66 · G E3 · B D2
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Harmonies
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