#511b1b

Color #511b1b

A moderately saturated dark red.

Closest named color Saddle Brown #8b4513 · ΔE 33.65 Nearest Tailwind class red-950 #460809 · ΔE 4.3

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Conversions

HEX

#511b1b

RGB

rgb(81, 27, 27)

HSL

hsl(0, 50%, 21.2%)

HSV / HSB

hsv(0, 66.7%, 31.8%)

CMYK

cmyk(0%, 66.7%, 66.7%, 68.2%)

LAB

lab(18.42, 25.31, 13.27)

LCH

lch(18.42, 28.58, 27.67)

OKLCH

oklch(30.7%, 0.0814, 23.16)

HWB

hwb(0, 10.6%, 68.2%)

Harmony colors

Complementary

#1b5151

Analogous

#511b36

#511b1b

#51361b

Triadic

#511b1b

#1b511b

#1b1b51

Split-complementary

#511b1b

#1b5136

#1b3651

Tetradic

#511b1b

#51511b

#1b5151

#1b1b51

Square

#511b1b

#36511b

#1b5151

#361b51

Shades

Color #511b1b mixed toward black.

#441717

#361212

#290e0e

#1b0909

#0e0505

Tints

Color #511b1b mixed toward white.

#832c2c

#b63d3d

#cd6868

#de9b9b

#eecdcd

Tones

Color #511b1b mixed toward gray.

#4d2020

#482424

#442929

#3f2d2d

#3b3232

Accessibility

Aa White text on this color

13.79:1

Aa Black text on this color

1.52:1

White text reads better on this background (13.79:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#40401b · ΔE 29.4

Deuteranopia

#43461b · ΔE 31.5

Tritanopia

#4f1b1b · ΔE 0.5

Achromatopsia

#2d2d2d · ΔE 20.6

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #511b1b;

Tailwind (arbitrary value)

bg-[#511b1b]

Related colors

Red #ff0000

Maroon #800000

Black #000000

Brown #a52a2a

Dark Gray #a9a9a9

Dark Red #8b0000

Frequently asked questions

#511b1b (#511b1b) is rgb(81, 27, 27) in RGB.

No, #511b1b is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #511b1b, or check how it holds up for accessibility.

Generate a palette → Check contrast