Recognised as Colour
#289A63
- #289A63
- Cyan
- Dark
- Nearest: Sea green
#289A63 is a cyan with RGB values 40, 154, 99 and HSL 151°, 59%, 38%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Sea green.
Colour values
#289A63#289A63
HEX#289A63
RGBrgb(40, 154, 99)
RGB (0–1)0.1569, 0.6039, 0.3882
RGB percentages15.7%, 60.4%, 38.8%
HSLhsl(151.1, 58.8%, 38%)
HSV / HSBhsv(151.1, 74%, 60.4%)
CMYK74%, 0%, 35.7%, 39.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,660,963
CSS custom property--colour: #289A63;
Brightness & contrast
Relative luminance0.24463WCAG 2.x, 0 is black and 1 is white
Perceived brightness124.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.89:1
Contrast with white3.56:1WCAG normal text: Fail
Contrast with black5.89:1WCAG normal text: AA
Greyscale equivalent#7E7E7E
Inverted#D7659C
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.56:1WCAG large text: AA
Contrast with black, large text5.89:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#9A285F
Analogous#289A2A, #28989A
Triadic#63289A, #9A6328
Split complementary#9A2898, #9A2A28
Tetradic#2A289A, #9A285F, #989A28
Tints, shades & saturation
Channel breakdown
R40
G154
B99
Red40 (15.7%)
Green154 (60.4%)
Blue99 (38.8%)
Hue151.05°
Saturation (HSL)58.76%
Lightness38.04%
Dominant channelGreen
Hex per channelR 28 · G 9A · B 63
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Harmonies
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