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Recognised as Colour

#E54500

  • #E54500
  • Orange
  • Dark
  • Nearest: Orange red

#E54500 is a orange with RGB values 229, 69, 0 and HSL 18°, 100%, 45%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#E54500#E54500
HEX#E54500
RGBrgb(229, 69, 0)
RGB (0–1)0.898, 0.2706, 0
RGB percentages89.8%, 27.1%, 0%
HSLhsl(18.1, 100%, 44.9%)
HSV / HSBhsv(18.1, 100%, 89.8%)
CMYK0%, 69.9%, 100%, 10.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,025,408
CSS custom property--colour: #E54500;

Brightness & contrast

Relative luminance0.20914WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.18:1
Contrast with white4.05:1WCAG normal text: Fail
Contrast with black5.18:1WCAG normal text: AA
Greyscale equivalent#626262
Inverted#1ABAFF

Colour vision & accessibility

Protanopia#766700no red cones; affects about 1% of men; ΔE 65.6 from the original
Deuteranopia#9D8B00no green cones; the most common form, about 1% of men; ΔE 65.3 from the original
Tritanopia#FD003Cno 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 text4.05:1WCAG large text: AA
Contrast with black, large text5.18:1WCAG large text: AAA

Named colours

Nearest named CSS colourOrange red (#FF4500)ΔE 10.6, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#00A0E5
Analogous#E5002D, #E5B800
Triadic#00E545, #4500E5
Split complementary#00E5B8, #002DE5
Tetradic#2EE500, #00A0E5, #B800E5

Tints, shades & saturation

Lighter +40%#FFC9B2
Lighter +30%#FFA67F
Lighter +20%#FF824C
Lighter +10%#FF5E19
Darker −10%#B23600
Darker −20%#7F2600
Darker −30%#4C1700
Darker −40%#190800
More saturated +25%#E54500
Less saturated −25%#C8501D

Channel breakdown

R229
G69
B0
Red229 (89.8%)
Green69 (27.1%)
Blue0 (0%)
Hue18.08°
Saturation (HSL)100%
Lightness44.9%
Dominant channelRed
Hex per channelR E5 · G 45 · B 00

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Every value on this page was computed from “e54500” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.