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Recognised as Colour

#EF2E2E

  • #EF2E2E
  • Red
  • Dark
  • Nearest: Crimson

#EF2E2E is a red with RGB values 239, 46, 46 and HSL 0°, 86%, 56%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#EF2E2E#EF2E2E
HEX#EF2E2E
RGBrgb(239, 46, 46)
RGB (0–1)0.9373, 0.1804, 0.1804
RGB percentages93.7%, 18%, 18%
HSLhsl(0, 85.8%, 55.9%)
HSV / HSBhsv(0, 80.8%, 93.7%)
CMYK0%, 80.8%, 80.8%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,674,926
CSS custom property--colour: #EF2E2E;

Brightness & contrast

Relative luminance0.20502WCAG 2.x, 0 is black and 1 is white
Perceived brightness136.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.1:1
Contrast with white4.12:1WCAG normal text: Fail
Contrast with black5.1:1WCAG normal text: AA
Greyscale equivalent#575757
Inverted#10D1D1

Colour vision & accessibility

Protanopia#6E622Bno red cones; affects about 1% of men; ΔE 75.7 from the original
Deuteranopia#9C8C24no green cones; the most common form, about 1% of men; ΔE 76.4 from the original
Tritanopia#FF0031no blue cones; rare, and affects men and women equally; ΔE 10.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.12:1WCAG large text: AA
Contrast with black, large text5.1:1WCAG large text: AAA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 15.69, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#2EEFEF
Analogous#EF2E8F, #EF8F2E
Triadic#2EEF2E, #2E2EEF
Split complementary#2EEF8F, #2E8FEF
Tetradic#8FEF2E, #2EEFEF, #8F2EEF

Tints, shades & saturation

Lighter +40%#FEEBEB
Lighter +30%#FABCBC
Lighter +20%#F68D8D
Lighter +10%#F35D5D
Darker −10%#D91111
Darker −20%#AA0D0D
Darker −30%#7B0909
Darker −40%#4B0606
More saturated +25%#FF1E1E
Less saturated −25%#D34A4A

Channel breakdown

R239
G46
B46
Red239 (93.7%)
Green46 (18%)
Blue46 (18%)
Hue0°
Saturation (HSL)85.78%
Lightness55.88%
Dominant channelRed
Hex per channelR EF · G 2E · B 2E

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Every value on this page was computed from “ef2e2e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.