Colour

#531D01

#531D01
Orange
Dark
Nearest: Saddle brown

#531D01 is a orange with RGB values 83, 29, 1 and HSL 20°, 98%, 16%. It is a dark colour, so white text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Saddle brown.

Colour values

#531D01#531D01

HEX#531D01

RGBrgb(83, 29, 1)

RGB (0–1)0.3255, 0.1137, 0.0039

RGB percentages32.5%, 11.4%, 0.4%

HSLhsl(20.5, 97.6%, 16.5%)

HSV / HSBhsv(20.5, 98.8%, 32.5%)

CMYK0%, 65.1%, 98.8%, 67.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,446,913

CSS custom property--colour: #531D01;

Brightness & contrast

Relative luminance0.0272WCAG 2.x, 0 is black and 1 is white

Perceived brightness50.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.6:1

Contrast with white13.6:1WCAG normal text: AAA

Contrast with black1.54:1WCAG normal text: Fail

Greyscale equivalent#262626

Inverted#ACE2FE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2D2600no red cones; affects about 1% of men; ΔE 26.4 from the original

Deuteranopia#3A3300no green cones; the most common form, about 1% of men; ΔE 27 from the original

Tritanopia#5C0F18no blue cones; rare, and affects men and women equally; ΔE 15.7 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text13.6:1WCAG large text: AAA

Contrast with black, large text1.54:1WCAG large text: Fail

Named colours

Saddle brown · ΔE 23 Sienna · ΔE 26.7 Maroon · ΔE 27.3 Dark red · ΔE 31.9 Brown · ΔE 32.1 Firebrick · ΔE 39.3

Nearest named CSS colourSaddle brown (#8B4513)ΔE 23.02, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#013753

Analogous#53010E, #534601

Triadic#01531D, #1D0153

Split complementary#015346, #010E53

Tetradic#0E5301, #013753, #460153

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FC6E24

Lighter +30%#EA5203

Lighter +20%#B84002

Lighter +10%#852F02

Darker −10%#210B00

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#541D00

Less saturated −25%#49200B

Channel breakdown

R83

G29

Red83 (32.5%)

Green29 (11.4%)

Blue1 (0.4%)

Hue20.49°

Saturation (HSL)97.62%

Lightness16.47%

Dominant channelRed

Hex per channelR 53 · G 1D · B 01

Keep nerding

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#531D01

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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