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Recognised as Colour

#CD1D20

  • #CD1D20
  • Red
  • Dark
  • Nearest: Firebrick

#CD1D20 is a red with RGB values 205, 29, 32 and HSL 359°, 75%, 46%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#CD1D20#CD1D20
HEX#CD1D20
RGBrgb(205, 29, 32)
RGB (0–1)0.8039, 0.1137, 0.1255
RGB percentages80.4%, 11.4%, 12.5%
HSLhsl(359, 75.2%, 45.9%)
HSV / HSBhsv(359, 85.9%, 80.4%)
CMYK0%, 85.9%, 84.4%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,442,336
CSS custom property--colour: #CD1D20;

Brightness & contrast

Relative luminance0.13962WCAG 2.x, 0 is black and 1 is white
Perceived brightness114.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.54:1
Contrast with white5.54:1WCAG normal text: AA
Contrast with black3.79:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#32E2DF

Colour vision & accessibility

Protanopia#5A501Dno red cones; affects about 1% of men; ΔE 69.8 from the original
Deuteranopia#847615no green cones; the most common form, about 1% of men; ΔE 70.1 from the original
Tritanopia#E20022no blue cones; rare, and affects men and women equally; ΔE 10 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.54:1WCAG large text: AAA
Contrast with black, large text3.79:1WCAG large text: AA

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 12.76, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1DCDCA
Analogous#CD1D78, #CD721D
Triadic#20CD1D, #1D20CD
Split complementary#1DCD72, #1D78CD
Tetradic#78CD1D, #1DCDCA, #721DCD

Tints, shades & saturation

Lighter +40%#F6C0C1
Lighter +30%#F09395
Lighter +20%#E96769
Lighter +10%#E33A3D
Darker −10%#A01719
Darker −20%#741012
Darker −30%#470A0B
Darker −40%#1A0404
More saturated +25%#EA0004
Less saturated −25%#B03A3C

Channel breakdown

R205
G29
B32
Red205 (80.4%)
Green29 (11.4%)
Blue32 (12.5%)
Hue358.98°
Saturation (HSL)75.21%
Lightness45.88%
Dominant channelRed
Hex per channelR CD · G 1D · B 20

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Every value on this page was computed from “cd1d20” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.