Recognised as Colour
#280A11
- #280A11
- Red
- Dark
- Nearest: Black
#280A11 is a red with RGB values 40, 10, 17 and HSL 346°, 60%, 10%. It is a dark colour, so white text on it reaches 18.4:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#280A11#280A11
HEX#280A11
RGBrgb(40, 10, 17)
RGB (0–1)0.1569, 0.0392, 0.0667
RGB percentages15.7%, 3.9%, 6.7%
HSLhsl(346, 60%, 9.8%)
HSV / HSBhsv(346, 75%, 15.7%)
CMYK0%, 75%, 57.5%, 84.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,624,017
CSS custom property--colour: #280A11;
Brightness & contrast
Relative luminance0.00709WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.39:1
Contrast with white18.39:1WCAG normal text: AAA
Contrast with black1.14:1WCAG normal text: Fail
Greyscale equivalent#111111
Inverted#D7F5EE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.39:1WCAG large text: AAA
Contrast with black, large text1.14:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#0A2821
Analogous#280A20, #28120A
Triadic#11280A, #0A1128
Split complementary#0A2812, #0A2028
Tetradic#20280A, #0A2821, #120A28
Tints, shades & saturation
Channel breakdown
R40
G10
B17
Red40 (15.7%)
Green10 (3.9%)
Blue17 (6.7%)
Hue346°
Saturation (HSL)60%
Lightness9.8%
Dominant channelRed
Hex per channelR 28 · G 0A · B 11
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