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Recognised as Colour

#E01A2A

  • #E01A2A
  • Red
  • Dark
  • Nearest: Crimson

#E01A2A is a red with RGB values 224, 26, 42 and HSL 355°, 79%, 49%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#E01A2A#E01A2A
HEX#E01A2A
RGBrgb(224, 26, 42)
RGB (0–1)0.8784, 0.102, 0.1647
RGB percentages87.8%, 10.2%, 16.5%
HSLhsl(355.2, 79.2%, 49%)
HSV / HSBhsv(355.2, 88.4%, 87.8%)
CMYK0%, 88.4%, 81.3%, 12.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,686,762
CSS custom property--colour: #E01A2A;

Brightness & contrast

Relative luminance0.16753WCAG 2.x, 0 is black and 1 is white
Perceived brightness124.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.83:1
Contrast with white4.83:1WCAG normal text: AA
Contrast with black4.35:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#1FE5D5

Colour vision & accessibility

Protanopia#615728no red cones; affects about 1% of men; ΔE 75.9 from the original
Deuteranopia#90801Fno green cones; the most common form, about 1% of men; ΔE 75.5 from the original
Tritanopia#F70024no blue cones; rare, and affects men and women equally; ΔE 12.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.83:1WCAG large text: AAA
Contrast with black, large text4.35:1WCAG large text: AA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 11.56, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1AE0D0
Analogous#E01A8D, #E06D1A
Triadic#2AE01A, #1A2AE0
Split complementary#1AE06D, #1A8DE0
Tetradic#8DE01A, #1AE0D0, #6D1AE0

Tints, shades & saturation

Lighter +40%#F9CDD0
Lighter +30%#F49FA6
Lighter +20%#EF717C
Lighter +10%#E94451
Darker −10%#B21521
Darker −20%#850F19
Darker −30%#570A10
Darker −40%#290508
More saturated +25%#FA0014
Less saturated −25%#C13944

Channel breakdown

R224
G26
B42
Red224 (87.8%)
Green26 (10.2%)
Blue42 (16.5%)
Hue355.15°
Saturation (HSL)79.2%
Lightness49.02%
Dominant channelRed
Hex per channelR E0 · G 1A · B 2A

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Every value on this page was computed from “e01a2a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.