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Recognised as Colour

#E13223

  • #E13223
  • Red
  • Dark
  • Nearest: Tomato

#E13223 is a red with RGB values 225, 50, 35 and HSL 5°, 76%, 51%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#E13223#E13223
HEX#E13223
RGBrgb(225, 50, 35)
RGB (0–1)0.8824, 0.1961, 0.1373
RGB percentages88.2%, 19.6%, 13.7%
HSLhsl(4.7, 76%, 51%)
HSV / HSBhsv(4.7, 84.4%, 88.2%)
CMYK0%, 77.8%, 84.4%, 11.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,758,435
CSS custom property--colour: #E13223;

Brightness & contrast

Relative luminance0.1841WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.68:1
Contrast with white4.49:1WCAG normal text: Fail
Contrast with black4.68:1WCAG normal text: AA
Greyscale equivalent#565656
Inverted#1ECDDC

Colour vision & accessibility

Protanopia#6A5E1Eno red cones; affects about 1% of men; ΔE 70.5 from the original
Deuteranopia#958517no green cones; the most common form, about 1% of men; ΔE 70.9 from the original
Tritanopia#F80031no blue cones; rare, and affects men and women equally; ΔE 14.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.49:1WCAG large text: AA
Contrast with black, large text4.68:1WCAG large text: AAA

Named colours

Nearest named CSS colourTomato (#FF6347)ΔE 14.84, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#23D2E1
Analogous#E12373, #E19123
Triadic#23E132, #3223E1
Split complementary#23E191, #2373E1
Tetradic#73E123, #23D2E1, #9123E1

Tints, shades & saturation

Lighter +40%#F9D9D7
Lighter +30%#F3AFAA
Lighter +20%#ED867D
Lighter +10%#E75C50
Darker −10%#B82619
Darker −20%#8B1C13
Darker −30%#5E130D
Darker −40%#310A07
More saturated +25%#FF1905
Less saturated −25%#C24C42

Channel breakdown

R225
G50
B35
Red225 (88.2%)
Green50 (19.6%)
Blue35 (13.7%)
Hue4.74°
Saturation (HSL)76%
Lightness50.98%
Dominant channelRed
Hex per channelR E1 · G 32 · B 23

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Every value on this page was computed from “e13223” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.