#31313f

Color #31313f

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 10.22 Nearest Tailwind class zinc-700 #3f3f46 · ΔE 5.9

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

Conversions

HEX

#31313f

RGB

rgb(49, 49, 63)

HSL

hsl(240, 12.5%, 22%)

HSV / HSB

hsv(240, 22.2%, 24.7%)

CMYK

cmyk(22.2%, 22.2%, 0%, 75.3%)

LAB

lab(20.86, 3.61, -8.77)

LCH

lch(20.86, 9.48, 292.37)

OKLCH

oklch(31.9%, 0.0248, 284.93)

HWB

hwb(240, 19.2%, 75.3%)

Harmony colors

Complementary

#3f3f31

Analogous

#31383f

#31313f

#38313f

Triadic

#31313f

#3f3131

#313f31

Split-complementary

#31313f

#3f3831

#383f31

Tetradic

#31313f

#3f313f

#3f3f31

#313f31

Square

#31313f

#3f3138

#3f3f31

#313f38

Shades

Color #31313f mixed toward black.

#292935

#21212a

#191920

#101015

#08080b

Tints

Color #31313f mixed toward white.

#4e4e64

#6b6b8a

#8f8fa8

#b4b4c5

#dadae2

Tones

Color #31313f mixed toward gray.

#32323e

#33333d

#35353c

#36363a

#373739

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

#31313c · ΔE 1.6

Deuteranopia

#31313b · ΔE 2.1

Tritanopia

#313939 · ΔE 11

Achromatopsia

#323232 · ΔE 8.4

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

Code

CSS

background-color: #31313f;

Tailwind (arbitrary value)

bg-[#31313f]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#31313f (#31313f) is rgb(49, 49, 63) in RGB.

No, #31313f 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 #31313f, or check how it holds up for accessibility.

Generate a palette → Check contrast