Recognised as Colour
#57AAB2
- #57AAB2
- Cyan
- Dark
- Nearest: Cadetblue
#57AAB2 is a cyan with RGB values 87, 170, 178 and HSL 185°, 37%, 52%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Cadetblue.
Colour values
#57AAB2#57AAB2
HEX#57AAB2
RGBrgb(87, 170, 178)
RGB (0–1)0.3412, 0.6667, 0.698
RGB percentages34.1%, 66.7%, 69.8%
HSLhsl(185.3, 37.1%, 52%)
HSV / HSBhsv(185.3, 51.1%, 69.8%)
CMYK51.1%, 4.5%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,745,330
CSS custom property--colour: #57AAB2;
Brightness & contrast
Relative luminance0.3399WCAG 2.x, 0 is black and 1 is white
Perceived brightness151.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.8:1
Contrast with white2.69:1WCAG normal text: Fail
Contrast with black7.8:1WCAG normal text: AAA
Greyscale equivalent#999999
Inverted#A8554D
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.69:1WCAG large text: Fail
Contrast with black, large text7.8:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#B25F57
Analogous#57B28C, #577DB2
Triadic#B257AA, #AAB257
Split complementary#B2577D, #B28C57
Tetradic#8C57B2, #B25F57, #7DB257
Tints, shades & saturation
Channel breakdown
R87
G170
B178
Red87 (34.1%)
Green170 (66.7%)
Blue178 (69.8%)
Hue185.27°
Saturation (HSL)37.14%
Lightness51.96%
Dominant channelBlue
Hex per channelR 57 · G AA · B B2
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