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Recognised as Colour

#AD1D14

  • #AD1D14
  • Red
  • Dark
  • Nearest: Firebrick

#AD1D14 is a red with RGB values 173, 29, 20 and HSL 4°, 79%, 38%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#AD1D14#AD1D14
HEX#AD1D14
RGBrgb(173, 29, 20)
RGB (0–1)0.6784, 0.1137, 0.0784
RGB percentages67.8%, 11.4%, 7.8%
HSLhsl(3.5, 79.3%, 37.8%)
HSV / HSBhsv(3.5, 88.4%, 67.8%)
CMYK0%, 83.2%, 88.4%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,345,172
CSS custom property--colour: #AD1D14;

Brightness & contrast

Relative luminance0.09813WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.09:1
Contrast with white7.09:1WCAG normal text: AAA
Contrast with black2.96:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#52E2EB

Colour vision & accessibility

Protanopia#4D4410no red cones; affects about 1% of men; ΔE 60.2 from the original
Deuteranopia#706308no green cones; the most common form, about 1% of men; ΔE 59.9 from the original
Tritanopia#BF001Dno blue cones; rare, and affects men and women equally; ΔE 9.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.09:1WCAG large text: AAA
Contrast with black, large text2.96:1WCAG large text: Fail

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 5.68, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#14A4AD
Analogous#AD1458, #AD6914
Triadic#14AD1D, #1D14AD
Split complementary#14AD69, #1458AD
Tetradic#58AD14, #14A4AD, #6914AD

Tints, shades & saturation

Lighter +40%#F39F9A
Lighter +30%#EE746C
Lighter +20%#E9483E
Lighter +10%#DB2519
Darker −10%#7F150F
Darker −20%#520E09
Darker −30%#240604
Darker −40%#000000
More saturated +25%#C10B00
Less saturated −25%#95322C

Channel breakdown

R173
G29
B20
Red173 (67.8%)
Green29 (11.4%)
Blue20 (7.8%)
Hue3.53°
Saturation (HSL)79.27%
Lightness37.84%
Dominant channelRed
Hex per channelR AD · G 1D · B 14

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Every value on this page was computed from “ad1d14” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.