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Recognised as Colour

#E21C06

  • #E21C06
  • Red
  • Dark
  • Nearest: Orange red

#E21C06 is a red with RGB values 226, 28, 6 and HSL 6°, 95%, 45%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#E21C06#E21C06
HEX#E21C06
RGBrgb(226, 28, 6)
RGB (0–1)0.8863, 0.1098, 0.0235
RGB percentages88.6%, 11%, 2.4%
HSLhsl(6, 94.8%, 45.5%)
HSV / HSBhsv(6, 97.3%, 88.6%)
CMYK0%, 87.6%, 97.3%, 11.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,818,310
CSS custom property--colour: #E21C06;

Brightness & contrast

Relative luminance0.17012WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.77:1
Contrast with white4.77:1WCAG normal text: AA
Contrast with black4.4:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#1DE3F9

Colour vision & accessibility

Protanopia#645700no red cones; affects about 1% of men; ΔE 75.9 from the original
Deuteranopia#928100no green cones; the most common form, about 1% of men; ΔE 75.4 from the original
Tritanopia#FA001Dno blue cones; rare, and affects men and women equally; ΔE 10.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.77:1WCAG large text: AAA
Contrast with black, large text4.4:1WCAG large text: AA

Named colours

Nearest named CSS colourOrange red (#FF4500)ΔE 13.08, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#06CCE2
Analogous#E2065E, #E28A06
Triadic#06E21C, #1C06E2
Split complementary#06E28A, #065EE2
Tetradic#5EE206, #06CCE2, #8A06E2

Tints, shades & saturation

Lighter +40%#FDBEB7
Lighter +30%#FC9185
Lighter +20%#FA6454
Lighter +10%#F93722
Darker −10%#B01605
Darker −20%#7F1003
Darker −30%#4D0A02
Darker −40%#1B0301
More saturated +25%#E81700
Less saturated −25%#C53323

Channel breakdown

R226
G28
B6
Red226 (88.6%)
Green28 (11%)
Blue6 (2.4%)
Hue6°
Saturation (HSL)94.83%
Lightness45.49%
Dominant channelRed
Hex per channelR E2 · G 1C · B 06

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Every value on this page was computed from “e21c06” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.