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Recognised as Colour

#AD513F

  • #AD513F
  • Red
  • Dark
  • Nearest: Sienna

#AD513F is a red with RGB values 173, 81, 63 and HSL 10°, 47%, 46%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Sienna.

Colour values

#AD513F#AD513F
HEX#AD513F
RGBrgb(173, 81, 63)
RGB (0–1)0.6784, 0.3176, 0.2471
RGB percentages67.8%, 31.8%, 24.7%
HSLhsl(9.8, 46.6%, 46.3%)
HSV / HSBhsv(9.8, 63.6%, 67.8%)
CMYK0%, 53.2%, 63.6%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,358,527
CSS custom property--colour: #AD513F;

Brightness & contrast

Relative luminance0.15128WCAG 2.x, 0 is black and 1 is white
Perceived brightness115.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.22:1
Contrast with white5.22:1WCAG normal text: AA
Contrast with black4.03:1WCAG normal text: Fail
Greyscale equivalent#636363
Inverted#52AEC0

Colour vision & accessibility

Protanopia#69603Dno red cones; affects about 1% of men; ΔE 39.2 from the original
Deuteranopia#7F743Dno green cones; the most common form, about 1% of men; ΔE 40.1 from the original
Tritanopia#BD404Dno blue cones; rare, and affects men and women equally; ΔE 16.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.22:1WCAG large text: AAA
Contrast with black, large text4.03:1WCAG large text: AA

Named colours

Nearest named CSS colourSienna (#A0522D)ΔE 10.21, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#3F9BAD
Analogous#AD3F64, #AD883F
Triadic#3FAD51, #513FAD
Split complementary#3FAD88, #3F64AD
Tetradic#64AD3F, #3F9BAD, #883FAD

Tints, shades & saturation

Lighter +40%#ECD1CC
Lighter +30%#DFB0A6
Lighter +20%#D18E81
Lighter +10%#C36D5C
Darker −10%#883F31
Darker −20%#622E24
Darker −30%#3D1C16
Darker −40%#170B09
More saturated +25%#CB3D21
Less saturated −25%#8F655D

Channel breakdown

R173
G81
B63
Red173 (67.8%)
Green81 (31.8%)
Blue63 (24.7%)
Hue9.82°
Saturation (HSL)46.61%
Lightness46.27%
Dominant channelRed
Hex per channelR AD · G 51 · B 3F

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Every value on this page was computed from “ad513f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.