Colour
#37383D
- #37383D
- Grey
- Dark
- Nearest: Dark slate grey
#37383D is a grey with RGB values 55, 56, 61 and HSL 230°, 5%, 23%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#37383D#37383D
HEX#37383D
RGBrgb(55, 56, 61)
RGB (0–1)0.2157, 0.2196, 0.2392
RGB percentages21.6%, 22%, 23.9%
HSLhsl(230, 5.2%, 22.7%)
HSV / HSBhsv(230, 9.8%, 23.9%)
CMYK9.8%, 8.2%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,618,877
CSS custom property--colour: #37383D;
Brightness & contrast
Relative luminance0.03977WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.7:1
Contrast with white11.7:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#C8C7C2
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.7:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail
Named colours
Hue familygrey
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3D3C37
Analogous#373B3D, #39373D
Triadic#3D3738, #383D37
Split complementary#3D3937, #3B3D37
Tetradic#3D373B, #3D3C37, #373D39
Tints, shades & saturation
Channel breakdown
R55
G56
B61
Red55 (21.6%)
Green56 (22%)
Blue61 (23.9%)
Hue230°
Saturation (HSL)5.17%
Lightness22.75%
Dominant channelBlue
Hex per channelR 37 · G 38 · B 3D
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