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Recognised as Colour

#E55518

  • #E55518
  • Orange
  • Dark
  • Nearest: Tomato

#E55518 is a orange with RGB values 229, 85, 24 and HSL 18°, 81%, 50%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#E55518#E55518
HEX#E55518
RGBrgb(229, 85, 24)
RGB (0–1)0.898, 0.3333, 0.0941
RGB percentages89.8%, 33.3%, 9.4%
HSLhsl(17.9, 81%, 49.6%)
HSV / HSBhsv(17.9, 89.5%, 89.8%)
CMYK0%, 62.9%, 89.5%, 10.2%naive device-independent conversion; real print needs an ICC profile
24-bit integer15,029,528
CSS custom property--colour: #E55518;

Brightness & contrast

Relative luminance0.23221WCAG 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 5.64:1
Contrast with white3.72:1WCAG normal text: Fail
Contrast with black5.64:1WCAG normal text: AA
Greyscale equivalent#6F6F6F
Inverted#1AAAE7

Colour vision & accessibility

Protanopia#7F7007no red cones; affects about 1% of men; ΔE 59 from the original
Deuteranopia#A3900Bno green cones; the most common form, about 1% of men; ΔE 58.9 from the original
Tritanopia#FC2B4Ano blue cones; rare, and affects men and women equally; ΔE 32 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 text5.64:1WCAG large text: AAA

Named colours

Nearest named CSS colourTomato (#FF6347)ΔE 15.46, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#18A8E5
Analogous#E51841, #E5BC18
Triadic#18E555, #5518E5
Split complementary#18E5BC, #1841E5
Tetradic#41E518, #18A8E5, #BC18E5

Tints, shades & saturation

Lighter +40%#FADCCF
Lighter +30%#F5BAA1
Lighter +20%#F09873
Lighter +10%#EB7645
Darker −10%#B74413
Darker −20%#89330E
Darker −30%#5B2209
Darker −40%#2C1005
More saturated +25%#FD4B00
Less saturated −25%#C56238

Channel breakdown

R229
G85
B24
Red229 (89.8%)
Green85 (33.3%)
Blue24 (9.4%)
Hue17.85°
Saturation (HSL)81.03%
Lightness49.61%
Dominant channelRed
Hex per channelR E5 · G 55 · B 18

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Every value on this page was computed from “e55518” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.