Colour
#37433D
- #37433D
- Cyan
- Dark
- Nearest: Dark slate grey
#37433D is a cyan with RGB values 55, 67, 61 and HSL 150°, 10%, 24%. It is a dark colour, so white text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#37433D#37433D
HEX#37433D
RGBrgb(55, 67, 61)
RGB (0–1)0.2157, 0.2627, 0.2392
RGB percentages21.6%, 26.3%, 23.9%
HSLhsl(150, 9.8%, 23.9%)
HSV / HSBhsv(150, 17.9%, 26.3%)
CMYK17.9%, 0%, 9%, 73.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,621,693
CSS custom property--colour: #37433D;
Brightness & contrast
Relative luminance0.05163WCAG 2.x, 0 is black and 1 is white
Perceived brightness63 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.33:1
Contrast with white10.33:1WCAG normal text: AAA
Contrast with black2.03:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#C8BCC2
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.33:1WCAG large text: AAA
Contrast with black, large text2.03:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#43373D
Analogous#374337, #374343
Triadic#3D3743, #433D37
Split complementary#433743, #433737
Tetradic#373743, #43373D, #434337
Tints, shades & saturation
Channel breakdown
R55
G67
B61
Red55 (21.6%)
Green67 (26.3%)
Blue61 (23.9%)
Hue150°
Saturation (HSL)9.84%
Lightness23.92%
Dominant channelGreen
Hex per channelR 37 · G 43 · B 3D
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