Recognised as Colour
#353F3F
- #353F3F
- Cyan
- Dark
- Nearest: Dark slate grey
#353F3F is a cyan with RGB values 53, 63, 63 and HSL 180°, 9%, 23%. It is a dark colour, so white text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#353F3F#353F3F
HEX#353F3F
RGBrgb(53, 63, 63)
RGB (0–1)0.2078, 0.2471, 0.2471
RGB percentages20.8%, 24.7%, 24.7%
HSLhsl(180, 8.6%, 22.7%)
HSV / HSBhsv(180, 15.9%, 24.7%)
CMYK15.9%, 0%, 0%, 75.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,489,599
CSS custom property--colour: #353F3F;
Brightness & contrast
Relative luminance0.04671WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.86:1
Contrast with white10.86:1WCAG normal text: AAA
Contrast with black1.93:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#CAC0C0
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.86:1WCAG large text: AAA
Contrast with black, large text1.93:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3F3535
Analogous#353F3A, #353A3F
Triadic#3F353F, #3F3F35
Split complementary#3F353A, #3F3A35
Tetradic#3A353F, #3F3535, #3A3F35
Tints, shades & saturation
Channel breakdown
R53
G63
B63
Red53 (20.8%)
Green63 (24.7%)
Blue63 (24.7%)
Hue180°
Saturation (HSL)8.62%
Lightness22.75%
Dominant channelGreen and Blue
Hex per channelR 35 · G 3F · B 3F
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