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Recognised as Colour

#AD2E16

  • #AD2E16
  • Red
  • Dark
  • Nearest: Firebrick

#AD2E16 is a red with RGB values 173, 46, 22 and HSL 10°, 77%, 38%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#AD2E16#AD2E16
HEX#AD2E16
RGBrgb(173, 46, 22)
RGB (0–1)0.6784, 0.1804, 0.0863
RGB percentages67.8%, 18%, 8.6%
HSLhsl(9.5, 77.4%, 38.2%)
HSV / HSBhsv(9.5, 87.3%, 67.8%)
CMYK0%, 73.4%, 87.3%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,349,526
CSS custom property--colour: #AD2E16;

Brightness & contrast

Relative luminance0.10896WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.61:1
Contrast with white6.61:1WCAG normal text: AA
Contrast with black3.18:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#52D1E9

Colour vision & accessibility

Protanopia#554B11no red cones; affects about 1% of men; ΔE 54.7 from the original
Deuteranopia#74670Dno green cones; the most common form, about 1% of men; ΔE 54.9 from the original
Tritanopia#BF002Ano blue cones; rare, and affects men and women equally; ΔE 17.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.61:1WCAG large text: AAA
Contrast with black, large text3.18:1WCAG large text: AA

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 8.34, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1695AD
Analogous#AD164A, #AD7A16
Triadic#16AD2E, #2E16AD
Split complementary#16AD79, #164AAD
Tetradic#4AAD16, #1695AD, #7916AD

Tints, shades & saturation

Lighter +40%#F2AA9D
Lighter +30%#ED836F
Lighter +20%#E75C42
Lighter +10%#DA3A1C
Darker −10%#802210
Darker −20%#53160A
Darker −30%#250A05
Darker −40%#000000
More saturated +25%#C31F00
Less saturated −25%#953F2E

Channel breakdown

R173
G46
B22
Red173 (67.8%)
Green46 (18%)
Blue22 (8.6%)
Hue9.54°
Saturation (HSL)77.44%
Lightness38.24%
Dominant channelRed
Hex per channelR AD · G 2E · B 16

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Every value on this page was computed from “ad2e16” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.