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Recognised as Colour

#E45621

  • #E45621
  • Orange
  • Dark
  • Nearest: Tomato

#E45621 is a orange with RGB values 228, 86, 33 and HSL 16°, 78%, 51%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#E45621#E45621
HEX#E45621
RGBrgb(228, 86, 33)
RGB (0–1)0.8941, 0.3373, 0.1294
RGB percentages89.4%, 33.7%, 12.9%
HSLhsl(16.3, 78.3%, 51.2%)
HSV / HSBhsv(16.3, 85.5%, 89.4%)
CMYK0%, 62.3%, 85.5%, 10.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,964,257
CSS custom property--colour: #E45621;

Brightness & contrast

Relative luminance0.23259WCAG 2.x, 0 is black and 1 is white
Perceived brightness141.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.65:1
Contrast with white3.72:1WCAG normal text: Fail
Contrast with black5.65:1WCAG normal text: AA
Greyscale equivalent#707070
Inverted#1BA9DE

Colour vision & accessibility

Protanopia#7F7017no red cones; affects about 1% of men; ΔE 58.1 from the original
Deuteranopia#A29019no green cones; the most common form, about 1% of men; ΔE 58.5 from the original
Tritanopia#FB2F4Cno blue cones; rare, and affects men and women equally; ΔE 30.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.72:1WCAG large text: AA
Contrast with black, large text5.65:1WCAG large text: AAA

Named colours

Nearest named CSS colourTomato (#FF6347)ΔE 12.95, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#21AFE4
Analogous#E4214E, #E4B821
Triadic#21E456, #5621E4
Split complementary#21E4B8, #214DE4
Tetradic#4DE421, #21AFE4, #B821E4

Tints, shades & saturation

Lighter +40%#FAE0D7
Lighter +30%#F5BEA9
Lighter +20%#EF9B7C
Lighter +10%#EA794E
Darker −10%#BB4317
Darker −20%#8E3311
Darker −30%#60230C
Darker −40%#331206
More saturated +25%#FF4A06
Less saturated −25%#C56440

Channel breakdown

R228
G86
B33
Red228 (89.4%)
Green86 (33.7%)
Blue33 (12.9%)
Hue16.31°
Saturation (HSL)78.31%
Lightness51.18%
Dominant channelRed
Hex per channelR E4 · G 56 · B 21

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Every value on this page was computed from “e45621” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.