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Recognised as Colour

#81501D

  • #81501D
  • Orange
  • Dark
  • Nearest: Saddle brown

#81501D is a orange with RGB values 129, 80, 29 and HSL 31°, 63%, 31%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Saddle brown.

Colour values

#81501D#81501D
HEX#81501D
RGBrgb(129, 80, 29)
RGB (0–1)0.5059, 0.3137, 0.1137
RGB percentages50.6%, 31.4%, 11.4%
HSLhsl(30.6, 63.3%, 31%)
HSV / HSBhsv(30.6, 77.5%, 50.6%)
CMYK0%, 38%, 77.5%, 49.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,474,653
CSS custom property--colour: #81501D;

Brightness & contrast

Relative luminance0.10493WCAG 2.x, 0 is black and 1 is white
Perceived brightness94 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.78:1
Contrast with white6.78:1WCAG normal text: AA
Contrast with black3.1:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#7EAFE2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5F5416no red cones; affects about 1% of men; ΔE 19.5 from the original
Deuteranopia#6B601Eno green cones; the most common form, about 1% of men; ΔE 20.1 from the original
Tritanopia#8D4545no blue cones; rare, and affects men and women equally; ΔE 27.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.78:1WCAG large text: AAA
Contrast with black, large text3.1:1WCAG large text: AA

Named colours

Saddle brown · ΔE 11.2Sienna · ΔE 14.3Peru · ΔE 26Dark goldenrod · ΔE 33.4Chocolate · ΔE 33.6Brown · ΔE 34.4
Nearest named CSS colourSaddle brown (#8B4513)ΔE 11.21, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1D4E81
Analogous#811E1D, #80811D
Triadic#1D8150, #501D81
Split complementary#1D8081, #1E1D81
Tetradic#1D811E, #1D4E81, #811D80

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E4B686
Lighter +30%#DA9D5D
Lighter +20%#D18433
Lighter +10%#AB6A26
Darker −10%#573614
Darker −20%#2E1C0A
Darker −30%#040301
Darker −40%#000000
More saturated +25%#955009
Less saturated −25%#6D5031

Channel breakdown

R129
G80
B29
Red129 (50.6%)
Green80 (31.4%)
Blue29 (11.4%)
Hue30.6°
Saturation (HSL)63.29%
Lightness30.98%
Dominant channelRed
Hex per channelR 81 · G 50 · B 1D

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Every value on this page was computed from “81501d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.