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Recognised as Colour

#E05B21

  • #E05B21
  • Orange
  • Dark
  • Nearest: Chocolate

#E05B21 is a orange with RGB values 224, 91, 33 and HSL 18°, 75%, 50%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Chocolate.

Colour values

#E05B21#E05B21
HEX#E05B21
RGBrgb(224, 91, 33)
RGB (0–1)0.8784, 0.3569, 0.1294
RGB percentages87.8%, 35.7%, 12.9%
HSLhsl(18.2, 75.5%, 50.4%)
HSV / HSBhsv(18.2, 85.3%, 87.8%)
CMYK0%, 59.4%, 85.3%, 12.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,703,393
CSS custom property--colour: #E05B21;

Brightness & contrast

Relative luminance0.23439WCAG 2.x, 0 is black and 1 is white
Perceived brightness141.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.69:1
Contrast with white3.69:1WCAG normal text: Fail
Contrast with black5.69:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#1FA4DE

Colour vision & accessibility

Protanopia#817216no red cones; affects about 1% of men; ΔE 54.5 from the original
Deuteranopia#A2901Ano green cones; the most common form, about 1% of men; ΔE 54.8 from the original
Tritanopia#F63950no blue cones; rare, and affects men and women equally; ΔE 31.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.69:1WCAG large text: AA
Contrast with black, large text5.69:1WCAG large text: AAA

Named colours

Nearest named CSS colourChocolate (#D2691E)ΔE 12.23, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#21A6E0
Analogous#E02146, #E0BB21
Triadic#21E05B, #5B21E0
Split complementary#21E0BB, #2146E0
Tetradic#46E021, #21A6E0, #BB21E0

Tints, shades & saturation

Lighter +40%#F9DFD4
Lighter +30%#F3BEA7
Lighter +20%#EC9D7B
Lighter +10%#E67C4E
Darker −10%#B54819
Darker −20%#883713
Darker −30%#5B250D
Darker −40%#2F1306
More saturated +25%#FF4F02
Less saturated −25%#C06741

Channel breakdown

R224
G91
B33
Red224 (87.8%)
Green91 (35.7%)
Blue33 (12.9%)
Hue18.22°
Saturation (HSL)75.49%
Lightness50.39%
Dominant channelRed
Hex per channelR E0 · G 5B · B 21

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Every value on this page was computed from “e05b21” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.