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Colour

#E02A28

  • #E02A28
  • Red
  • Dark
  • Nearest: Crimson

#E02A28 is a red with RGB values 224, 42, 40 and HSL 1°, 75%, 52%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#E02A28#E02A28
HEX#E02A28
RGBrgb(224, 42, 40)
RGB (0–1)0.8784, 0.1647, 0.1569
RGB percentages87.8%, 16.5%, 15.7%
HSLhsl(0.7, 74.8%, 51.8%)
HSV / HSBhsv(0.7, 82.1%, 87.8%)
CMYK0%, 81.3%, 82.1%, 12.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,690,856
CSS custom property--colour: #E02A28;

Brightness & contrast

Relative luminance0.17656WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.63:1
Contrast with white4.63:1WCAG normal text: AA
Contrast with black4.53:1WCAG normal text: AA
Greyscale equivalent#515151
Inverted#1FD5D7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#665B25no red cones; affects about 1% of men; ΔE 72.5 from the original
Deuteranopia#92831Eno green cones; the most common form, about 1% of men; ΔE 72.9 from the original
Tritanopia#F7002Dno blue cones; rare, and affects men and women equally; ΔE 12 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.63:1WCAG large text: AAA
Contrast with black, large text4.53:1WCAG large text: AAA

Named colours

Crimson · ΔE 14.3Tomato · ΔE 16.1Firebrick · ΔE 17.8Orange red · ΔE 23.3Red · ΔE 24.2Brown · ΔE 26.8
Nearest named CSS colourCrimson (#DC143C)ΔE 14.3, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#28DEE0
Analogous#E02882, #E08628
Triadic#28E02A, #2A28E0
Split complementary#28E086, #2882E0
Tetradic#82E028, #28DEE0, #8628E0

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FADBDA
Lighter +30%#F3AEAE
Lighter +20%#ED8281
Lighter +10%#E65655
Darker −10%#BA1D1B
Darker −20%#8E1614
Darker −30%#610F0E
Darker −40%#340808
More saturated +25%#FF0C09
Less saturated −25%#C14847

Channel breakdown

R224
G42
B40
Red224 (87.8%)
Green42 (16.5%)
Blue40 (15.7%)
Hue0.65°
Saturation (HSL)74.8%
Lightness51.76%
Dominant channelRed
Hex per channelR E0 · G 2A · B 28

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Every value on this page was computed from “e02a28” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.