Colour
#21977D
- #21977D
- Cyan
- Dark
- Nearest: Light seagreen
#21977D is a cyan with RGB values 33, 151, 125 and HSL 167°, 64%, 36%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Light seagreen.
Colour values
#21977D#21977D
HEX#21977D
RGBrgb(33, 151, 125)
RGB (0–1)0.1294, 0.5922, 0.4902
RGB percentages12.9%, 59.2%, 49%
HSLhsl(166.8, 64.1%, 36.1%)
HSV / HSBhsv(166.8, 78.1%, 59.2%)
CMYK78.1%, 0%, 17.2%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,201,469
CSS custom property--colour: #21977D;
Brightness & contrast
Relative luminance0.23937WCAG 2.x, 0 is black and 1 is white
Perceived brightness124.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.79:1
Contrast with white3.63:1WCAG normal text: Fail
Contrast with black5.79:1WCAG normal text: AA
Greyscale equivalent#7C7C7C
Inverted#DE6882
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.63:1WCAG large text: AA
Contrast with black, large text5.79:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#97213B
Analogous#219742, #217697
Triadic#7D2197, #977D21
Split complementary#972176, #974221
Tetradic#422197, #97213B, #769721
Tints, shades & saturation
Channel breakdown
R33
G151
B125
Red33 (12.9%)
Green151 (59.2%)
Blue125 (49%)
Hue166.78°
Saturation (HSL)64.13%
Lightness36.08%
Dominant channelGreen
Hex per channelR 21 · G 97 · B 7D
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