Colour
#155A61
- #155A61
- Cyan
- Dark
- Nearest: Dark slate grey
#155A61 is a cyan with RGB values 21, 90, 97 and HSL 186°, 64%, 23%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#155A61#155A61
HEX#155A61
RGBrgb(21, 90, 97)
RGB (0–1)0.0824, 0.3529, 0.3804
RGB percentages8.2%, 35.3%, 38%
HSLhsl(185.5, 64.4%, 23.1%)
HSV / HSBhsv(185.5, 78.4%, 38%)
CMYK78.4%, 7.2%, 0%, 62%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,399,393
CSS custom property--colour: #155A61;
Brightness & contrast
Relative luminance0.08335WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.87:1
Contrast with white7.87:1WCAG normal text: AAA
Contrast with black2.67:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#EAA59E
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.87:1WCAG large text: AAA
Contrast with black, large text2.67:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#611C15
Analogous#156142, #153461
Triadic#61155A, #5A6115
Split complementary#611534, #614215
Tetradic#421561, #611C15, #346115
Tints, shades & saturation
Channel breakdown
R21
G90
B97
Red21 (8.2%)
Green90 (35.3%)
Blue97 (38%)
Hue185.53°
Saturation (HSL)64.41%
Lightness23.14%
Dominant channelBlue
Hex per channelR 15 · G 5A · B 61
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