#31303c

Color #31303c

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 10.45 Nearest Tailwind class zinc-700 #3f3f46 · ΔE 5.7

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

Conversions

HEX

#31303c

RGB

rgb(49, 48, 60)

HSL

hsl(245, 11.1%, 21.2%)

HSV / HSB

hsv(245, 20%, 23.5%)

CMYK

cmyk(18.3%, 20%, 0%, 76.5%)

LAB

lab(20.41, 3.47, -7.41)

LCH

lch(20.41, 8.18, 295.09)

OKLCH

oklch(31.5%, 0.0213, 288.95)

HWB

hwb(245, 18.8%, 76.5%)

Harmony colors

Complementary

#3b3c30

Analogous

#30353c

#31303c

#37303c

Triadic

#31303c

#3c3130

#303c31

Split-complementary

#31303c

#3c3730

#353c30

Tetradic

#31303c

#3c303b

#3b3c30

#303c31

Square

#31303c

#3c3035

#3b3c30

#303c37

Shades

Color #31303c mixed toward black.

#292832

#212028

#19181e

#101014

#08080a

Tints

Color #31303c mixed toward white.

#4f4e61

#6e6c86

#918fa6

#b6b5c3

#dadae1

Tones

Color #31303c mixed toward gray.

#32313b

#33323a

#343339

#343438

#353537

Accessibility

Aa White text on this color

12.97:1

Aa Black text on this color

1.62:1

White text reads better on this background (12.97:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#313139 · ΔE 2.5

Deuteranopia

#313139 · ΔE 2.5

Tritanopia

#313737 · ΔE 9.7

Achromatopsia

#313131 · ΔE 7.5

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

Code

CSS

background-color: #31303c;

Tailwind (arbitrary value)

bg-[#31303c]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#31303c (#31303c) is rgb(49, 48, 60) in RGB.

No, #31303c 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.

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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 #31303c, or check how it holds up for accessibility.

Generate a palette → Check contrast