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Colour

#AD0B24

  • #AD0B24
  • Red
  • Dark
  • Nearest: Firebrick

#AD0B24 is a red with RGB values 173, 11, 36 and HSL 351°, 88%, 36%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#AD0B24#AD0B24
HEX#AD0B24
RGBrgb(173, 11, 36)
RGB (0–1)0.6784, 0.0431, 0.1412
RGB percentages67.8%, 4.3%, 14.1%
HSLhsl(350.7, 88%, 36.1%)
HSV / HSBhsv(350.7, 93.6%, 67.8%)
CMYK0%, 93.6%, 79.2%, 32.2%naive device-independent conversion; real print needs an ICC profile
24-bit integer11,340,580
CSS custom property--colour: #AD0B24;

Brightness & contrast

Relative luminance0.09251WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.37:1
Contrast with white7.37:1WCAG normal text: AAA
Contrast with black2.85:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#52F4DB

Colour vision & accessibility

Protanopia#474123no red cones; affects about 1% of men; ΔE 63.9 from the original
Deuteranopia#6D611Dno green cones; the most common form, about 1% of men; ΔE 63.3 from the original
Tritanopia#BF0019no blue cones; rare, and affects men and women equally; ΔE 12.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.37:1WCAG large text: AAA
Contrast with black, large text2.85:1WCAG large text: Fail

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 5.98, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0BAD94
Analogous#AD0B75, #AD430B
Triadic#24AD0B, #0B24AD
Split complementary#0BAD43, #0B75AD
Tetradic#75AD0B, #0BAD94, #430BAD

Tints, shades & saturation

Lighter +40%#F88C9D
Lighter +30%#F55C74
Lighter +20%#F22C4B
Lighter +10%#DD0E2E
Darker −10%#7D081A
Darker −20%#4D0510
Darker −30%#1D0206
Darker −40%#000000
More saturated +25%#B8001C
Less saturated −25%#962234

Channel breakdown

R173
G11
B36
Red173 (67.8%)
Green11 (4.3%)
Blue36 (14.1%)
Hue350.74°
Saturation (HSL)88.04%
Lightness36.08%
Dominant channelRed
Hex per channelR AD · G 0B · B 24

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Every value on this page was computed from “ad0b24” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.