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Recognised as Colour

#B5400A

  • #B5400A
  • Orange
  • Dark
  • Nearest: Chocolate

#B5400A is a orange with RGB values 181, 64, 10 and HSL 19°, 90%, 37%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Chocolate.

Colour values

#B5400A#B5400A
HEX#B5400A
RGBrgb(181, 64, 10)
RGB (0–1)0.7098, 0.251, 0.0392
RGB percentages71%, 25.1%, 3.9%
HSLhsl(18.9, 89.5%, 37.5%)
HSV / HSBhsv(18.9, 94.5%, 71%)
CMYK0%, 64.6%, 94.5%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,878,410
CSS custom property--colour: #B5400A;

Brightness & contrast

Relative luminance0.13512WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.67:1
Contrast with white5.67:1WCAG normal text: AA
Contrast with black3.7:1WCAG normal text: Fail
Greyscale equivalent#555555
Inverted#4ABFF5

Colour vision & accessibility

Protanopia#635600no red cones; affects about 1% of men; ΔE 49.7 from the original
Deuteranopia#7F7100no green cones; the most common form, about 1% of men; ΔE 50.7 from the original
Tritanopia#C81C37no blue cones; rare, and affects men and women equally; ΔE 27.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.67:1WCAG large text: AAA
Contrast with black, large text3.7:1WCAG large text: AA

Named colours

Nearest named CSS colourChocolate (#D2691E)ΔE 15.82, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0A7FB5
Analogous#B50A2A, #B5950A
Triadic#0AB540, #400AB5
Split complementary#0AB595, #0A2AB5
Tetradic#2AB50A, #0A7FB5, #950AB5

Tints, shades & saturation

Lighter +40%#F9B392
Lighter +30%#F69162
Lighter +20%#F46F31
Lighter +10%#E5510D
Darker −10%#852F07
Darker −20%#541E05
Darker −30%#240D02
Darker −40%#000000
More saturated +25%#BF3C00
Less saturated −25%#9D4922

Channel breakdown

R181
G64
B10
Red181 (71%)
Green64 (25.1%)
Blue10 (3.9%)
Hue18.95°
Saturation (HSL)89.53%
Lightness37.45%
Dominant channelRed
Hex per channelR B5 · G 40 · B 0A

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Every value on this page was computed from “b5400a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.