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Recognised as Colour

#EF4959

  • #EF4959
  • Red
  • Dark
  • Nearest: Crimson

#EF4959 is a red with RGB values 239, 73, 89 and HSL 354°, 84%, 61%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#EF4959#EF4959
HEX#EF4959
RGBrgb(239, 73, 89)
RGB (0–1)0.9373, 0.2863, 0.349
RGB percentages93.7%, 28.6%, 34.9%
HSLhsl(354.2, 83.8%, 61.2%)
HSV / HSBhsv(354.2, 69.5%, 93.7%)
CMYK0%, 69.5%, 62.8%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,681,881
CSS custom property--colour: #EF4959;

Brightness & contrast

Relative luminance0.23837WCAG 2.x, 0 is black and 1 is white
Perceived brightness145.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.77:1
Contrast with white3.64:1WCAG normal text: Fail
Contrast with black5.77:1WCAG normal text: AA
Greyscale equivalent#6D6D6D
Inverted#10B6A6

Colour vision & accessibility

Protanopia#767058no red cones; affects about 1% of men; ΔE 67.9 from the original
Deuteranopia#A09354no green cones; the most common form, about 1% of men; ΔE 68.6 from the original
Tritanopia#FF1850no blue cones; rare, and affects men and women equally; ΔE 16.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.64:1WCAG large text: AA
Contrast with black, large text5.77:1WCAG large text: AAA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 12.49, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#49EFDF
Analogous#EF49AC, #EF8C49
Triadic#59EF49, #4959EF
Split complementary#49EF8C, #49ACEF
Tetradic#ACEF49, #49EFDF, #8C49EF

Tints, shades & saturation

Lighter +40%#FFFFFF
Lighter +30%#FBD6D9
Lighter +20%#F7A7AF
Lighter +10%#F37884
Darker −10%#EB1A2E
Darker −20%#C11122
Darker −30%#920D1A
Darker −40%#630911
More saturated +25%#FF394C
Less saturated −25%#D6626D

Channel breakdown

R239
G73
B89
Red239 (93.7%)
Green73 (28.6%)
Blue89 (34.9%)
Hue354.22°
Saturation (HSL)83.84%
Lightness61.18%
Dominant channelRed
Hex per channelR EF · G 49 · B 59

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Every value on this page was computed from “ef4959” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.