Recognised as Colour
#15898D
- #15898D
- Cyan
- Dark
- Nearest: Dark cyan
#15898D is a cyan with RGB values 21, 137, 141 and HSL 182°, 74%, 32%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Dark cyan.
Colour values
#15898D#15898D
HEX#15898D
RGBrgb(21, 137, 141)
RGB (0–1)0.0824, 0.5373, 0.5529
RGB percentages8.2%, 53.7%, 55.3%
HSLhsl(182, 74.1%, 31.8%)
HSV / HSBhsv(182, 85.1%, 55.3%)
CMYK85.1%, 2.8%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,411,469
CSS custom property--colour: #15898D;
Brightness & contrast
Relative luminance0.19974WCAG 2.x, 0 is black and 1 is white
Perceived brightness115.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.99:1
Contrast with white4.2:1WCAG normal text: Fail
Contrast with black4.99:1WCAG normal text: AA
Greyscale equivalent#717171
Inverted#EA7672
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.2:1WCAG large text: AA
Contrast with black, large text4.99:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#8D1915
Analogous#158D55, #154D8D
Triadic#8D1589, #898D15
Split complementary#8D154D, #8D5515
Tetradic#55158D, #8D1915, #4D8D15
Tints, shades & saturation
Channel breakdown
R21
G137
B141
Red21 (8.2%)
Green137 (53.7%)
Blue141 (55.3%)
Hue182°
Saturation (HSL)74.07%
Lightness31.76%
Dominant channelBlue
Hex per channelR 15 · G 89 · B 8D
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