Recognised as Colour

#581D12

#581D12
Red
Dark
Nearest: Saddle brown

#581D12 is a red with RGB values 88, 29, 18 and HSL 9°, 66%, 21%. It is a dark colour, so white text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Saddle brown.

Colour values

#581D12#581D12

HEX#581D12

RGBrgb(88, 29, 18)

RGB (0–1)0.3451, 0.1137, 0.0706

RGB percentages34.5%, 11.4%, 7.1%

HSLhsl(9.4, 66%, 20.8%)

HSV / HSBhsv(9.4, 79.5%, 34.5%)

CMYK0%, 67%, 79.5%, 65.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,774,610

CSS custom property--colour: #581D12;

Brightness & contrast

Relative luminance0.02997WCAG 2.x, 0 is black and 1 is white

Perceived brightness53.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.13:1

Contrast with white13.13:1WCAG normal text: AAA

Contrast with black1.6:1WCAG normal text: Fail

Greyscale equivalent#292929

Inverted#A7E2ED

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2D2811no red cones; affects about 1% of men; ΔE 29 from the original

Deuteranopia#3C3510no green cones; the most common form, about 1% of men; ΔE 29 from the original

Tritanopia#610F1Bno blue cones; rare, and affects men and women equally; ΔE 11.3 from the original

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

Contrast with white, large text13.13:1WCAG large text: AAA

Contrast with black, large text1.6:1WCAG large text: Fail

Named colours

Saddle brown · ΔE 26.1 Maroon · ΔE 27.7 Sienna · ΔE 27.8 Brown · ΔE 30.4 Dark red · ΔE 32.5 Indian red · ΔE 38

Nearest named CSS colourSaddle brown (#8B4513)ΔE 26.13, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#124D58

Analogous#58122A, #584012

Triadic#12581D, #1D1258

Split complementary#125840, #122A58

Tetradic#2A5812, #124D58, #401258

Tints, shades & saturation

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

Lighter +40%#DD6E59

Lighter +30%#D4492F

Lighter +20%#AD3923

Lighter +10%#822B1B

Darker −10%#2E0F09

Darker −20%#030101

Darker −30%#000000

Darker −40%#000000

More saturated +25%#651405

Less saturated −25%#4B261F

Channel breakdown

R88

G29

B18

Red88 (34.5%)

Green29 (11.4%)

Blue18 (7.1%)

Hue9.43°

Saturation (HSL)66.04%

Lightness20.78%

Dominant channelRed

Hex per channelR 58 · G 1D · B 12

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#581D12

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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