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Recognised as Colour

#E45440

  • #E45440
  • Red
  • Dark
  • Nearest: Tomato

#E45440 is a red with RGB values 228, 84, 64 and HSL 7°, 75%, 57%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#E45440#E45440
HEX#E45440
RGBrgb(228, 84, 64)
RGB (0–1)0.8941, 0.3294, 0.251
RGB percentages89.4%, 32.9%, 25.1%
HSLhsl(7.3, 75.2%, 57.3%)
HSV / HSBhsv(7.3, 71.9%, 89.4%)
CMYK0%, 63.2%, 71.9%, 10.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,963,776
CSS custom property--colour: #E45440;

Brightness & contrast

Relative luminance0.23205WCAG 2.x, 0 is black and 1 is white
Perceived brightness142 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.64:1
Contrast with white3.72:1WCAG normal text: Fail
Contrast with black5.64:1WCAG normal text: AA
Greyscale equivalent#717171
Inverted#1BABBF

Colour vision & accessibility

Protanopia#7C713Dno red cones; affects about 1% of men; ΔE 59.6 from the original
Deuteranopia#A0903Bno green cones; the most common form, about 1% of men; ΔE 59.8 from the original
Tritanopia#FA3050no blue cones; rare, and affects men and women equally; ΔE 21.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.72:1WCAG large text: AA
Contrast with black, large text5.64:1WCAG large text: AAA

Named colours

Nearest named CSS colourTomato (#FF6347)ΔE 9.2, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#40D0E4
Analogous#E4407E, #E4A640
Triadic#40E454, #5440E4
Split complementary#40E4A6, #407EE4
Tetradic#7EE440, #40D0E4, #A640E4

Tints, shades & saturation

Lighter +40%#FDF4F3
Lighter +30%#F7CCC6
Lighter +20%#F1A499
Lighter +10%#EA7C6D
Darker −10%#D3341E
Darker −20%#A62918
Darker −30%#7A1E11
Darker −40%#4D130B
More saturated +25%#FF4025
Less saturated −25%#C9695B

Channel breakdown

R228
G84
B64
Red228 (89.4%)
Green84 (32.9%)
Blue64 (25.1%)
Hue7.32°
Saturation (HSL)75.23%
Lightness57.25%
Dominant channelRed
Hex per channelR E4 · G 54 · B 40

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Every value on this page was computed from “e45440” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.