#313d51

Color #313d51

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 7.61 Nearest Tailwind class gray-700 #364153 · ΔE 1.6

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Conversions

HEX

#313d51

RGB

rgb(49, 61, 81)

HSL

hsl(217.5, 24.6%, 25.5%)

HSV / HSB

hsv(217.5, 39.5%, 31.8%)

CMYK

cmyk(39.5%, 24.7%, 0%, 68.2%)

LAB

lab(25.52, 0.86, -13.68)

LCH

lch(25.52, 13.71, 273.6)

OKLCH

oklch(35.8%, 0.0384, 260.56)

HWB

hwb(217.5, 19.2%, 68.2%)

Harmony colors

Complementary

#514531

Analogous

#314d51

#313d51

#353151

Triadic

#313d51

#51313d

#3d5131

Split-complementary

#313d51

#513531

#4d5131

Tetradic

#313d51

#453151

#514531

#3d5131

Square

#313d51

#51314d

#514531

#315135

Shades

Color #313d51 mixed toward black.

#293344

#212936

#191f29

#10141b

#080a0e

Tints

Color #313d51 mixed toward white.

#495b78

#6179a0

#899ab7

#b0bccf

#d8dde7

Tones

Color #313d51 mixed toward gray.

#343e4e

#363e4c

#393f49

#3c4046

#3e4044

Accessibility

Aa White text on this color

10.96:1

Aa Black text on this color

1.92:1

White text reads better on this background (10.96:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#37374d · ΔE 6.3

Deuteranopia

#36354c · ΔE 7.1

Tritanopia

#324948 · ΔE 14.3

Achromatopsia

#3c3c3c · ΔE 10.5

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

Code

CSS

background-color: #313d51;

Tailwind (arbitrary value)

bg-[#313d51]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Royal Blue #4169e1

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#313d51 (#313d51) is rgb(49, 61, 81) in RGB.

No, #313d51 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #313d51, or check how it holds up for accessibility.

Generate a palette → Check contrast