Colour
#339A81
- #339A81
- Cyan
- Dark
- Nearest: Light seagreen
#339A81 is a cyan with RGB values 51, 154, 129 and HSL 165°, 50%, 40%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Light seagreen.
Colour values
#339A81#339A81
HEX#339A81
RGBrgb(51, 154, 129)
RGB (0–1)0.2, 0.6039, 0.5059
RGB percentages20%, 60.4%, 50.6%
HSLhsl(165.4, 50.2%, 40.2%)
HSV / HSBhsv(165.4, 66.9%, 60.4%)
CMYK66.9%, 0%, 16.2%, 39.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,381,889
CSS custom property--colour: #339A81;
Brightness & contrast
Relative luminance0.254WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.08:1
Contrast with white3.45:1WCAG normal text: Fail
Contrast with black6.08:1WCAG normal text: AA
Greyscale equivalent#828282
Inverted#CC657E
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.45:1WCAG large text: AA
Contrast with black, large text6.08:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#9A334C
Analogous#339A4E, #337F9A
Triadic#81339A, #9A8133
Split complementary#9A337F, #9A4E33
Tetradic#4E339A, #9A334C, #7F9A33
Tints, shades & saturation
Channel breakdown
R51
G154
B129
Red51 (20%)
Green154 (60.4%)
Blue129 (50.6%)
Hue165.44°
Saturation (HSL)50.24%
Lightness40.2%
Dominant channelGreen
Hex per channelR 33 · G 9A · B 81
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