Recognised as Colour
#337A81
- #337A81
- Cyan
- Dark
- Nearest: Teal
#337A81 is a cyan with RGB values 51, 122, 129 and HSL 185°, 43%, 35%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Teal.
Colour values
#337A81#337A81
HEX#337A81
RGBrgb(51, 122, 129)
RGB (0–1)0.2, 0.4784, 0.5059
RGB percentages20%, 47.8%, 50.6%
HSLhsl(185.4, 43.3%, 35.3%)
HSV / HSBhsv(185.4, 60.5%, 50.6%)
CMYK60.5%, 5.4%, 0%, 49.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,373,697
CSS custom property--colour: #337A81;
Brightness & contrast
Relative luminance0.16208WCAG 2.x, 0 is black and 1 is white
Perceived brightness106.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.95:1
Contrast with white4.95:1WCAG normal text: AA
Contrast with black4.24:1WCAG normal text: Fail
Greyscale equivalent#6B6B6B
Inverted#CC857E
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.95:1WCAG large text: AAA
Contrast with black, large text4.24:1WCAG large text: AA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#813A33
Analogous#338161, #335381
Triadic#81337A, #7A8133
Split complementary#813353, #816133
Tetradic#613381, #813A33, #538133
Tints, shades & saturation
Channel breakdown
R51
G122
B129
Red51 (20%)
Green122 (47.8%)
Blue129 (50.6%)
Hue185.38°
Saturation (HSL)43.33%
Lightness35.29%
Dominant channelBlue
Hex per channelR 33 · G 7A · B 81
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