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Recognised as Colour

#EF2A2E

  • #EF2A2E
  • Red
  • Dark
  • Nearest: Crimson

#EF2A2E is a red with RGB values 239, 42, 46 and HSL 359°, 86%, 55%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#EF2A2E#EF2A2E
HEX#EF2A2E
RGBrgb(239, 42, 46)
RGB (0–1)0.9373, 0.1647, 0.1804
RGB percentages93.7%, 16.5%, 18%
HSLhsl(358.8, 86%, 55.1%)
HSV / HSBhsv(358.8, 82.4%, 93.7%)
CMYK0%, 82.4%, 80.8%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,673,902
CSS custom property--colour: #EF2A2E;

Brightness & contrast

Relative luminance0.20204WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.04:1
Contrast with white4.17:1WCAG normal text: Fail
Contrast with black5.04:1WCAG normal text: AA
Greyscale equivalent#545454
Inverted#10D5D1

Colour vision & accessibility

Protanopia#6C612Bno red cones; affects about 1% of men; ΔE 77.1 from the original
Deuteranopia#9C8B24no green cones; the most common form, about 1% of men; ΔE 76.8 from the original
Tritanopia#FF002Fno blue cones; rare, and affects men and women equally; ΔE 9.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.17:1WCAG large text: AA
Contrast with black, large text5.04:1WCAG large text: AAA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 15.27, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#2AEFEB
Analogous#EF2A90, #EF892A
Triadic#2EEF2A, #2A2EEF
Split complementary#2AEF89, #2A90EF
Tetradic#90EF2A, #2AEFEB, #892AEF

Tints, shades & saturation

Lighter +40%#FDE8E8
Lighter +30%#FAB8BA
Lighter +20%#F6898B
Lighter +10%#F3595D
Darker −10%#D61014
Darker −20%#A60D10
Darker −30%#77090B
Darker −40%#480507
More saturated +25%#FF1A1F
Less saturated −25%#D24749

Channel breakdown

R239
G42
B46
Red239 (93.7%)
Green42 (16.5%)
Blue46 (18%)
Hue358.78°
Saturation (HSL)86.03%
Lightness55.1%
Dominant channelRed
Hex per channelR EF · G 2A · B 2E

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Every value on this page was computed from “ef2a2e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.