Recognised as Colour
#028988
- #028988
- Cyan
- Dark
- Nearest: Dark cyan
#028988 is a cyan with RGB values 2, 137, 136 and HSL 180°, 97%, 27%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Dark cyan.
Colour values
#028988#028988
HEX#028988
RGBrgb(2, 137, 136)
RGB (0–1)0.0078, 0.5373, 0.5333
RGB percentages0.8%, 53.7%, 53.3%
HSLhsl(179.6, 97.1%, 27.3%)
HSV / HSBhsv(179.6, 98.5%, 53.7%)
CMYK98.5%, 0%, 0.7%, 46.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer166,280
CSS custom property--colour: #028988;
Brightness & contrast
Relative luminance0.19682WCAG 2.x, 0 is black and 1 is white
Perceived brightness114.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.94:1
Contrast with white4.25:1WCAG normal text: Fail
Contrast with black4.94:1WCAG normal text: AA
Greyscale equivalent#6C6C6C
Inverted#FD7677
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.25:1WCAG large text: AA
Contrast with black, large text4.94:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#890203
Analogous#028944, #024789
Triadic#880289, #898802
Split complementary#890247, #894402
Tetradic#440289, #890203, #478902
Tints, shades & saturation
Channel breakdown
R2
G137
B136
Red2 (0.8%)
Green137 (53.7%)
Blue136 (53.3%)
Hue179.56°
Saturation (HSL)97.12%
Lightness27.25%
Dominant channelGreen
Hex per channelR 02 · G 89 · B 88
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