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Recognised as Colour

#B22E08

  • #B22E08
  • Red
  • Dark
  • Nearest: Firebrick

#B22E08 is a red with RGB values 178, 46, 8 and HSL 13°, 91%, 36%. 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

#B22E08#B22E08
HEX#B22E08
RGBrgb(178, 46, 8)
RGB (0–1)0.698, 0.1804, 0.0314
RGB percentages69.8%, 18%, 3.1%
HSLhsl(13.4, 91.4%, 36.5%)
HSV / HSBhsv(13.4, 95.5%, 69.8%)
CMYK0%, 74.2%, 95.5%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,677,192
CSS custom property--colour: #B22E08;

Brightness & contrast

Relative luminance0.11436WCAG 2.x, 0 is black and 1 is white
Perceived brightness103.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.39:1
Contrast with white6.39:1WCAG normal text: AA
Contrast with black3.29:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#4DD1F7

Colour vision & accessibility

Protanopia#574C00no red cones; affects about 1% of men; ΔE 56.3 from the original
Deuteranopia#786A00no green cones; the most common form, about 1% of men; ΔE 56.3 from the original
Tritanopia#C50029no blue cones; rare, and affects men and women equally; ΔE 19.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.39:1WCAG large text: AAA
Contrast with black, large text3.29:1WCAG large text: AA

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 13.18, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#088CB2
Analogous#B20837, #B28308
Triadic#08B22E, #2E08B2
Split complementary#08B283, #0837B2
Tetradic#37B208, #088CB2, #8308B2

Tints, shades & saturation

Lighter +40%#FAA58C
Lighter +30%#F87E5B
Lighter +20%#F5582B
Lighter +10%#E33B0A
Darker −10%#812106
Darker −20%#501504
Darker −30%#200801
Darker −40%#000000
More saturated +25%#BA2A00
Less saturated −25%#9B3B1F

Channel breakdown

R178
G46
B8
Red178 (69.8%)
Green46 (18%)
Blue8 (3.1%)
Hue13.41°
Saturation (HSL)91.4%
Lightness36.47%
Dominant channelRed
Hex per channelR B2 · G 2E · B 08

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Every value on this page was computed from “b22e08” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.