Colour
#1F1313
- #1F1313
- Red
- Dark
- Nearest: Black
#1F1313 is a red with RGB values 31, 19, 19 and HSL 0°, 24%, 10%. It is a dark colour, so white text on it reaches 18.1:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#1F1313#1F1313
HEX#1F1313
RGBrgb(31, 19, 19)
RGB (0–1)0.1216, 0.0745, 0.0745
RGB percentages12.2%, 7.5%, 7.5%
HSLhsl(0, 24%, 9.8%)
HSV / HSBhsv(0, 38.7%, 12.2%)
CMYK0%, 38.7%, 38.7%, 87.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,036,499
CSS custom property--colour: #1F1313;
Brightness & contrast
Relative luminance0.00804WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.09:1
Contrast with white18.09:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#161616
Inverted#E0ECEC
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.09:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#131F1F
Analogous#1F1319, #1F1913
Triadic#131F13, #13131F
Split complementary#131F19, #13191F
Tetradic#191F13, #131F1F, #19131F
Tints, shades & saturation
Channel breakdown
R31
G19
B19
Red31 (12.2%)
Green19 (7.5%)
Blue19 (7.5%)
Hue0°
Saturation (HSL)24%
Lightness9.8%
Dominant channelRed
Hex per channelR 1F · G 13 · B 13
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