Colour
#154D51
- #154D51
- Cyan
- Dark
- Nearest: Dark slate grey
#154D51 is a cyan with RGB values 21, 77, 81 and HSL 184°, 59%, 20%. It is a dark colour, so white text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#154D51#154D51
HEX#154D51
RGBrgb(21, 77, 81)
RGB (0–1)0.0824, 0.302, 0.3176
RGB percentages8.2%, 30.2%, 31.8%
HSLhsl(184, 58.8%, 20%)
HSV / HSBhsv(184, 74.1%, 31.8%)
CMYK74.1%, 4.9%, 0%, 68.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,396,049
CSS custom property--colour: #154D51;
Brightness & contrast
Relative luminance0.06061WCAG 2.x, 0 is black and 1 is white
Perceived brightness66 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.49:1
Contrast with white9.49:1WCAG normal text: AAA
Contrast with black2.21:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#EAB2AE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.49:1WCAG large text: AAA
Contrast with black, large text2.21:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#511915
Analogous#155137, #152F51
Triadic#51154D, #4D5115
Split complementary#51152F, #513715
Tetradic#371551, #511915, #2F5115
Tints, shades & saturation
Channel breakdown
R21
G77
B81
Red21 (8.2%)
Green77 (30.2%)
Blue81 (31.8%)
Hue184°
Saturation (HSL)58.82%
Lightness20%
Dominant channelBlue
Hex per channelR 15 · G 4D · B 51
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