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Recognised as Colour

#E7422E

  • #E7422E
  • Red
  • Dark
  • Nearest: Tomato

#E7422E is a red with RGB values 231, 66, 46 and HSL 6°, 79%, 54%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#E7422E#E7422E
HEX#E7422E
RGBrgb(231, 66, 46)
RGB (0–1)0.9059, 0.2588, 0.1804
RGB percentages90.6%, 25.9%, 18%
HSLhsl(6.5, 79.4%, 54.3%)
HSV / HSBhsv(6.5, 80.1%, 90.6%)
CMYK0%, 71.4%, 80.1%, 9.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,155,758
CSS custom property--colour: #E7422E;

Brightness & contrast

Relative luminance0.21083WCAG 2.x, 0 is black and 1 is white
Perceived brightness136.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.22:1
Contrast with white4.03:1WCAG normal text: Fail
Contrast with black5.22:1WCAG normal text: AA
Greyscale equivalent#646464
Inverted#18BDD1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#74682Ano red cones; affects about 1% of men; ΔE 67.5 from the original
Deuteranopia#9C8C26no green cones; the most common form, about 1% of men; ΔE 67.9 from the original
Tritanopia#FE003Fno blue cones; rare, and affects men and women equally; ΔE 20.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.03:1WCAG large text: AA
Contrast with black, large text5.22:1WCAG large text: AAA

Named colours

Tomato · ΔE 10.3Crimson · ΔE 18.3Firebrick · ΔE 18.7Orange red · ΔE 21.8Coral · ΔE 22Red · ΔE 26
Nearest named CSS colourTomato (#FF6347)ΔE 10.31, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2ED3E7
Analogous#E72E76, #E79F2E
Triadic#2EE742, #422EE7
Split complementary#2EE79E, #2E77E7
Tetradic#77E72E, #2ED3E7, #9E2EE7

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FCE7E5
Lighter +30%#F7BEB7
Lighter +20%#F29589
Lighter +10%#EC6B5C
Darker −10%#CB2B17
Darker −20%#9D2112
Darker −30%#6F170D
Darker −40%#410E08
More saturated +25%#FF2F16
Less saturated −25%#CA594B

Channel breakdown

R231
G66
B46
Red231 (90.6%)
Green66 (25.9%)
Blue46 (18%)
Hue6.49°
Saturation (HSL)79.4%
Lightness54.31%
Dominant channelRed
Hex per channelR E7 · G 42 · B 2E

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Every value on this page was computed from “e7422e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.