Colour
#28010C
- #28010C
- Red
- Dark
- Nearest: Black
#28010C is a red with RGB values 40, 1, 12 and HSL 343°, 95%, 8%. It is a dark colour, so white text on it reaches 19.1:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#28010C#28010C
HEX#28010C
RGBrgb(40, 1, 12)
RGB (0–1)0.1569, 0.0039, 0.0471
RGB percentages15.7%, 0.4%, 4.7%
HSLhsl(343.1, 95.1%, 8%)
HSV / HSBhsv(343.1, 97.5%, 15.7%)
CMYK0%, 97.5%, 70%, 84.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,621,708
CSS custom property--colour: #28010C;
Brightness & contrast
Relative luminance0.00499WCAG 2.x, 0 is black and 1 is white
Perceived brightness22.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.09:1
Contrast with white19.09:1WCAG normal text: AAA
Contrast with black1.1:1WCAG normal text: Fail
Greyscale equivalent#0A0A0A
Inverted#D7FEF3
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.09:1WCAG large text: AAA
Contrast with black, large text1.1:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#01281D
Analogous#28011F, #280A01
Triadic#0C2801, #010C28
Split complementary#01280A, #011F28
Tetradic#1F2801, #01281D, #0A0128
Tints, shades & saturation
Channel breakdown
R40
G1
B12
Red40 (15.7%)
Green1 (0.4%)
Blue12 (4.7%)
Hue343.08°
Saturation (HSL)95.12%
Lightness8.04%
Dominant channelRed
Hex per channelR 28 · G 01 · B 0C
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