Colour
#57303F
- #57303F
- Red
- Dark
- Nearest: Dim grey
#57303F is a red with RGB values 87, 48, 63 and HSL 337°, 29%, 26%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dim grey.
Colour values
#57303F#57303F
HEX#57303F
RGBrgb(87, 48, 63)
RGB (0–1)0.3412, 0.1882, 0.2471
RGB percentages34.1%, 18.8%, 24.7%
HSLhsl(336.9, 28.9%, 26.5%)
HSV / HSBhsv(336.9, 44.8%, 34.1%)
CMYK0%, 44.8%, 27.6%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,713,983
CSS custom property--colour: #57303F;
Brightness & contrast
Relative luminance0.04499WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.05:1
Contrast with white11.05:1WCAG normal text: AAA
Contrast with black1.9:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#A8CFC0
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.05:1WCAG large text: AAA
Contrast with black, large text1.9:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#305748
Analogous#573053, #573430
Triadic#3F5730, #303F57
Split complementary#305734, #305357
Tetradic#535730, #305748, #343057
Tints, shades & saturation
Channel breakdown
R87
G48
B63
Red87 (34.1%)
Green48 (18.8%)
Blue63 (24.7%)
Hue336.92°
Saturation (HSL)28.89%
Lightness26.47%
Dominant channelRed
Hex per channelR 57 · G 30 · B 3F
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