Colour
#008B8B
- #008B8B
- Cyan
- Dark
- Named: Dark cyan
#008B8B is the CSS colour cyan with RGB values 0, 139, 139 and HSL 180°, 100%, 27%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Dark cyan.
Colour values
#008B8B#008B8B
HEX#008B8B
RGBrgb(0, 139, 139)
RGB (0–1)0, 0.5451, 0.5451
RGB percentages0%, 54.5%, 54.5%
HSLhsl(180, 100%, 27.3%)
HSV / HSBhsv(180, 100%, 54.5%)
CMYK100%, 0%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer35,723
CSS custom property--colour: #008B8B;
Brightness & contrast
Relative luminance0.20329WCAG 2.x, 0 is black and 1 is white
Perceived brightness116.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.07:1
Contrast with white4.15:1WCAG normal text: Fail
Contrast with black5.07:1WCAG normal text: AA
Greyscale equivalent#6D6D6D
Inverted#FF7474
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.15:1WCAG large text: AA
Contrast with black, large text5.07:1WCAG large text: AAA
Named colours
Colour harmonies
Complementary#8B0000
Analogous#008B46, #00468B
Triadic#8B008B, #8B8B00
Split complementary#8B0046, #8B4600
Tetradic#46008B, #8B0000, #468B00
Tints, shades & saturation
Channel breakdown
R0
G139
B139
Red0 (0%)
Green139 (54.5%)
Blue139 (54.5%)
Hue180°
Saturation (HSL)100%
Lightness27.25%
Dominant channelGreen and Blue
Hex per channelR 00 · G 8B · B 8B
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