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Recognised as Colour

#E81D64

  • #E81D64
  • Red
  • Dark
  • Nearest: Crimson

#E81D64 is a red with RGB values 232, 29, 100 and HSL 339°, 82%, 51%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#E81D64#E81D64
HEX#E81D64
RGBrgb(232, 29, 100)
RGB (0–1)0.9098, 0.1137, 0.3922
RGB percentages91%, 11.4%, 39.2%
HSLhsl(339, 81.5%, 51.2%)
HSV / HSBhsv(339, 87.5%, 91%)
CMYK0%, 87.5%, 56.9%, 9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,211,876
CSS custom property--colour: #E81D64;

Brightness & contrast

Relative luminance0.18955WCAG 2.x, 0 is black and 1 is white
Perceived brightness133.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.79:1
Contrast with white4.38:1WCAG normal text: Fail
Contrast with black4.79:1WCAG normal text: AA
Greyscale equivalent#4D4D4D
Inverted#17E29B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5D5F65no red cones; affects about 1% of men; ΔE 76.9 from the original
Deuteranopia#90865Fno green cones; the most common form, about 1% of men; ΔE 77.6 from the original
Tritanopia#FE0040no blue cones; rare, and affects men and women equally; ΔE 26.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.38:1WCAG large text: AA
Contrast with black, large text4.79:1WCAG large text: AAA

Named colours

Crimson · ΔE 19.9Deep pink · ΔE 23Medium violet red · ΔE 30.4Indian red · ΔE 30.9Hot pink · ΔE 30.9Firebrick · ΔE 32
Nearest named CSS colourCrimson (#DC143C)ΔE 19.88, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1DE8A1
Analogous#E81DC9, #E83B1D
Triadic#64E81D, #1D64E8
Split complementary#1DE83B, #1DC9E8
Tetradic#CAE81D, #1DE8A1, #3C1DE8

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FBD6E3
Lighter +30%#F6A8C3
Lighter +20%#F17AA3
Lighter +10%#ED4B84
Darker −10%#BF134F
Darker −20%#900F3C
Darker −30%#620A29
Darker −40%#340516
More saturated +25%#FF065D
Less saturated −25%#C93C6D

Channel breakdown

R232
G29
B100
Red232 (91%)
Green29 (11.4%)
Blue100 (39.2%)
Hue339.01°
Saturation (HSL)81.53%
Lightness51.18%
Dominant channelRed
Hex per channelR E8 · G 1D · B 64

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Every value on this page was computed from “e81d64” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.