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Colour

#C00A0B

  • #C00A0B
  • Red
  • Dark
  • Nearest: Firebrick

#C00A0B is a red with RGB values 192, 10, 11 and HSL 360°, 90%, 40%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#C00A0B#C00A0B
HEX#C00A0B
RGBrgb(192, 10, 11)
RGB (0–1)0.7529, 0.0392, 0.0431
RGB percentages75.3%, 3.9%, 4.3%
HSLhsl(359.7, 90.1%, 39.6%)
HSV / HSBhsv(359.7, 94.8%, 75.3%)
CMYK0%, 94.8%, 94.3%, 24.7%naive device-independent conversion; real print needs an ICC profile
24-bit integer12,585,483
CSS custom property--colour: #C00A0B;

Brightness & contrast

Relative luminance0.11448WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.38:1
Contrast with white6.38:1WCAG normal text: AA
Contrast with black3.29:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#3FF5F4

Colour vision & accessibility

Protanopia#514704no red cones; affects about 1% of men; ΔE 69.1 from the original
Deuteranopia#7A6C00no green cones; the most common form, about 1% of men; ΔE 68.7 from the original
Tritanopia#D40011no blue cones; rare, and affects men and women equally; ΔE 7.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.38:1WCAG large text: AAA
Contrast with black, large text3.29:1WCAG large text: AA

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 15.17, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0AC0BF
Analogous#C00A66, #C0640A
Triadic#0BC00A, #0A0BC0
Split complementary#0AC064, #0A66C0
Tetradic#66C00A, #0AC0BF, #640AC0

Tints, shades & saturation

Lighter +40%#FA9C9D
Lighter +30%#F76C6C
Lighter +20%#F53B3C
Lighter +10%#F00D0E
Darker −10%#900708
Darker −20%#5F0505
Darker −30%#2F0203
Darker −40%#000000
More saturated +25%#CA0001
Less saturated −25%#A72324

Channel breakdown

R192
G10
B11
Red192 (75.3%)
Green10 (3.9%)
Blue11 (4.3%)
Hue359.67°
Saturation (HSL)90.1%
Lightness39.61%
Dominant channelRed
Hex per channelR C0 · G 0A · B 0B

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Every value on this page was computed from “c00a0b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.