#313237

Color #313237

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 9.72 Nearest Tailwind class zinc-800 #27272a · ΔE 3.7

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Conversions

HEX

#313237

RGB

rgb(49, 50, 55)

HSL

hsl(230, 5.8%, 20.4%)

HSV / HSB

hsv(230, 10.9%, 21.6%)

CMYK

cmyk(10.9%, 9.1%, 0%, 78.4%)

LAB

lab(20.87, 0.79, -3.31)

LCH

lch(20.87, 3.4, 283.42)

OKLCH

oklch(31.8%, 0.009, 277.05)

HWB

hwb(230, 19.2%, 78.4%)

Harmony colors

Complementary

#373631

Analogous

#313537

#313237

#333137

Triadic

#313237

#373132

#323731

Split-complementary

#313237

#373331

#353731

Tetradic

#313237

#363137

#373631

#323731

Square

#313237

#373135

#373631

#313733

Shades

Color #313237 mixed toward black.

#292a2e

#212125

#19191c

#101112

#080809

Tints

Color #313237 mixed toward white.

#51535b

#71737f

#94969f

#b7b9bf

#dbdcdf

Tones

Color #313237 mixed toward gray.

#323237

#323336

#333336

#333335

#343435

Accessibility

Aa White text on this color

12.79:1

Aa Black text on this color

1.64:1

White text reads better on this background (12.79:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#313136 · ΔE 0.7

Deuteranopia

#313136 · ΔE 0.7

Tritanopia

#313535 · ΔE 4.4

Achromatopsia

#323232 · ΔE 3.3

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

Code

CSS

background-color: #313237;

Tailwind (arbitrary value)

bg-[#313237]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#313237 (#313237) is rgb(49, 50, 55) in RGB.

No, #313237 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.

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Build something with this color

Generate a full palette from #313237, or check how it holds up for accessibility.

Generate a palette → Check contrast