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Recognised as Colour

#AD1420

  • #AD1420
  • Red
  • Dark
  • Nearest: Firebrick

#AD1420 is a red with RGB values 173, 20, 32 and HSL 355°, 79%, 38%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#AD1420#AD1420
HEX#AD1420
RGBrgb(173, 20, 32)
RGB (0–1)0.6784, 0.0784, 0.1255
RGB percentages67.8%, 7.8%, 12.5%
HSLhsl(355.3, 79.3%, 37.8%)
HSV / HSBhsv(355.3, 88.4%, 67.8%)
CMYK0%, 88.4%, 81.5%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,342,880
CSS custom property--colour: #AD1420;

Brightness & contrast

Relative luminance0.09489WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.25:1
Contrast with white7.25:1WCAG normal text: AAA
Contrast with black2.9:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#52EBDF

Colour vision & accessibility

Protanopia#4A421Eno red cones; affects about 1% of men; ΔE 61.9 from the original
Deuteranopia#6E6218no green cones; the most common form, about 1% of men; ΔE 62.1 from the original
Tritanopia#BF001Bno blue cones; rare, and affects men and women equally; ΔE 10.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.25:1WCAG large text: AAA
Contrast with black, large text2.9:1WCAG large text: Fail

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 3.17, a close match
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#14ADA1
Analogous#AD146D, #AD5514
Triadic#20AD14, #1420AD
Split complementary#14AD55, #146DAD
Tetradic#6CAD14, #14ADA1, #5414AD

Tints, shades & saturation

Lighter +40%#F39AA1
Lighter +30%#EE6C76
Lighter +20%#E93E4C
Lighter +10%#DB1928
Darker −10%#7F0F18
Darker −20%#52090F
Darker −30%#240407
Darker −40%#000000
More saturated +25%#C1000F
Less saturated −25%#952C34

Channel breakdown

R173
G20
B32
Red173 (67.8%)
Green20 (7.8%)
Blue32 (12.5%)
Hue355.29°
Saturation (HSL)79.27%
Lightness37.84%
Dominant channelRed
Hex per channelR AD · G 14 · B 20

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Every value on this page was computed from “ad1420” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.