Colour
#159D99
- #159D99
- Cyan
- Dark
- Nearest: Dark cyan
#159D99 is a cyan with RGB values 21, 157, 153 and HSL 178°, 76%, 35%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Dark cyan.
Colour values
#159D99#159D99
HEX#159D99
RGBrgb(21, 157, 153)
RGB (0–1)0.0824, 0.6157, 0.6
RGB percentages8.2%, 61.6%, 60%
HSLhsl(178.2, 76.4%, 34.9%)
HSV / HSBhsv(178.2, 86.6%, 61.6%)
CMYK86.6%, 0%, 2.5%, 38.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,416,601
CSS custom property--colour: #159D99;
Brightness & contrast
Relative luminance0.26573WCAG 2.x, 0 is black and 1 is white
Perceived brightness131.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.31:1
Contrast with white3.33:1WCAG normal text: Fail
Contrast with black6.31:1WCAG normal text: AA
Greyscale equivalent#808080
Inverted#EA6266
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.33:1WCAG large text: AA
Contrast with black, large text6.31:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#9D1519
Analogous#159D55, #155D9D
Triadic#99159D, #9D9915
Split complementary#9D155D, #9D5515
Tetradic#55159D, #9D1519, #5D9D15
Tints, shades & saturation
Channel breakdown
R21
G157
B153
Red21 (8.2%)
Green157 (61.6%)
Blue153 (60%)
Hue178.24°
Saturation (HSL)76.4%
Lightness34.9%
Dominant channelGreen
Hex per channelR 15 · G 9D · B 99
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