Colour
#57EFEA
- #57EFEA
- Cyan
- Light
- Nearest: Turquoise
#57EFEA is a cyan with RGB values 87, 239, 234 and HSL 178°, 83%, 64%. It is a light colour, so black text on it reaches 14.9:1 contrast (AAA for normal text). The nearest named colour is Turquoise.
Colour values
#57EFEA#57EFEA
HEX#57EFEA
RGBrgb(87, 239, 234)
RGB (0–1)0.3412, 0.9373, 0.9176
RGB percentages34.1%, 93.7%, 91.8%
HSLhsl(178, 82.6%, 63.9%)
HSV / HSBhsv(178, 63.6%, 93.7%)
CMYK63.6%, 0%, 2.1%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,763,050
CSS custom property--colour: #57EFEA;
Brightness & contrast
Relative luminance0.697WCAG 2.x, 0 is black and 1 is white
Perceived brightness205 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 14.94:1
Contrast with white1.41:1WCAG normal text: Fail
Contrast with black14.94:1WCAG normal text: AAA
Greyscale equivalent#CECECE
Inverted#A81015
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.41:1WCAG large text: Fail
Contrast with black, large text14.94:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#EF575C
Analogous#57EF9E, #57A8EF
Triadic#EA57EF, #EFEA57
Split complementary#EF57A8, #EF9E57
Tetradic#9E57EF, #EF575C, #A8EF57
Tints, shades & saturation
Channel breakdown
R87
G239
B234
Red87 (34.1%)
Green239 (93.7%)
Blue234 (91.8%)
Hue178.03°
Saturation (HSL)82.61%
Lightness63.92%
Dominant channelGreen
Hex per channelR 57 · G EF · B EA
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