#373131

Color #373131

A nearly neutral, gray-leaning dark red.

Closest named color Charcoal #36454f · ΔE 13.05 Nearest Tailwind class stone-800 #292524 · ΔE 4.2

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#373131

RGB

rgb(55, 49, 49)

HSL

hsl(0, 5.8%, 20.4%)

HSV / HSB

hsv(0, 10.9%, 21.6%)

CMYK

cmyk(0%, 10.9%, 10.9%, 78.4%)

LAB

lab(20.94, 2.68, 0.97)

LCH

lch(20.94, 2.85, 19.9)

OKLCH

oklch(32%, 0.0086, 17.59)

HWB

hwb(0, 19.2%, 78.4%)

Harmony colors

Complementary

#313737

Analogous

#373134

#373131

#373431

Triadic

#373131

#313731

#313137

Split-complementary

#373131

#313734

#313437

Tetradic

#373131

#373731

#313737

#313137

Square

#373131

#343731

#313737

#343137

Shades

Color #373131 mixed toward black.

#2e2929

#252121

#1c1919

#121010

#090808

Tints

Color #373131 mixed toward white.

#5b5151

#7f7171

#9f9494

#bfb7b7

#dfdbdb

Tones

Color #373131 mixed toward gray.

#373232

#363232

#363333

#353333

#353434

Accessibility

Aa White text on this color

12.76:1

Aa Black text on this color

1.65:1

White text reads better on this background (12.76:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#343431 · ΔE 4.9

Deuteranopia

#353531 · ΔE 5.4

Tritanopia

#373131 · ΔE 0

Achromatopsia

#323232 · ΔE 3.8

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

Code

CSS

background-color: #373131;

Tailwind (arbitrary value)

bg-[#373131]

Related colors

Red #ff0000

Maroon #800000

Black #000000

Brown #a52a2a

Dark Gray #a9a9a9

Dark Red #8b0000

Frequently asked questions

#373131 (#373131) is rgb(55, 49, 49) in RGB.

No, #373131 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.

Try it → Accessibility

Contrast Checker

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

Try it → Generators

Palette Generator

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

Try it →

Build something with this color

Generate a full palette from #373131, or check how it holds up for accessibility.

Generate a palette → Check contrast