Colour
#383F42
- #383F42
- Cyan
- Dark
- Nearest: Dark slate grey
#383F42 is a cyan with RGB values 56, 63, 66 and HSL 198°, 8%, 24%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#383F42#383F42
HEX#383F42
RGBrgb(56, 63, 66)
RGB (0–1)0.2196, 0.2471, 0.2588
RGB percentages22%, 24.7%, 25.9%
HSLhsl(198, 8.2%, 23.9%)
HSV / HSBhsv(198, 15.2%, 25.9%)
CMYK15.2%, 4.5%, 0%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,686,210
CSS custom property--colour: #383F42;
Brightness & contrast
Relative luminance0.04789WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.73:1
Contrast with white10.73:1WCAG normal text: AAA
Contrast with black1.96:1WCAG normal text: Fail
Greyscale equivalent#3E3E3E
Inverted#C7C0BD
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.73:1WCAG large text: AAA
Contrast with black, large text1.96:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#423B38
Analogous#384240, #383A42
Triadic#42383F, #3F4238
Split complementary#42383A, #424038
Tetradic#403842, #423B38, #3A4238
Tints, shades & saturation
Channel breakdown
R56
G63
B66
Red56 (22%)
Green63 (24.7%)
Blue66 (25.9%)
Hue198°
Saturation (HSL)8.2%
Lightness23.92%
Dominant channelBlue
Hex per channelR 38 · G 3F · B 42
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