Colour
#31040E
- #31040E
- Red
- Dark
- Nearest: Black
#31040E is a red with RGB values 49, 4, 14 and HSL 347°, 85%, 10%. It is a dark colour, so white text on it reaches 18.2:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#31040E#31040E
HEX#31040E
RGBrgb(49, 4, 14)
RGB (0–1)0.1922, 0.0157, 0.0549
RGB percentages19.2%, 1.6%, 5.5%
HSLhsl(346.7, 84.9%, 10.4%)
HSV / HSBhsv(346.7, 91.8%, 19.2%)
CMYK0%, 91.8%, 71.4%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,212,302
CSS custom property--colour: #31040E;
Brightness & contrast
Relative luminance0.00772WCAG 2.x, 0 is black and 1 is white
Perceived brightness27.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.19:1
Contrast with white18.19:1WCAG normal text: AAA
Contrast with black1.15:1WCAG normal text: Fail
Greyscale equivalent#0E0E0E
Inverted#CEFBF1
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.19:1WCAG large text: AAA
Contrast with black, large text1.15:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#043127
Analogous#310424, #311104
Triadic#0E3104, #040E31
Split complementary#043111, #042431
Tetradic#243104, #043127, #110431
Tints, shades & saturation
Channel breakdown
R49
G4
B14
Red49 (19.2%)
Green4 (1.6%)
Blue14 (5.5%)
Hue346.67°
Saturation (HSL)84.91%
Lightness10.39%
Dominant channelRed
Hex per channelR 31 · G 04 · B 0E
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