#313b4b

Color #313b4b

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 6.1 Nearest Tailwind class gray-700 #364153 · ΔE 2.1

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Conversions

HEX

#313b4b

RGB

rgb(49, 59, 75)

HSL

hsl(216.9, 21%, 24.3%)

HSV / HSB

hsv(216.9, 34.7%, 29.4%)

CMYK

cmyk(34.7%, 21.3%, 0%, 70.6%)

LAB

lab(24.6, 0.34, -11.12)

LCH

lch(24.6, 11.13, 271.75)

OKLCH

oklch(35%, 0.0311, 259.63)

HWB

hwb(216.9, 19.2%, 70.6%)

Harmony colors

Complementary

#4b4131

Analogous

#31484b

#313b4b

#34314b

Triadic

#313b4b

#4b313b

#3b4b31

Split-complementary

#313b4b

#4b3431

#484b31

Tetradic

#313b4b

#41314b

#4b4131

#3b4b31

Square

#313b4b

#4b3148

#4b4131

#314b34

Shades

Color #313b4b mixed toward black.

#29313e

#212732

#181d25

#101419

#080a0c

Tints

Color #313b4b mixed toward white.

#4a5a72

#647899

#8a9ab3

#b1bccc

#d8dde6

Tones

Color #313b4b mixed toward gray.

#333b49

#353c47

#373c44

#3a3d42

#3c3d40

Accessibility

Aa White text on this color

11.3:1

Aa Black text on this color

1.86:1

White text reads better on this background (11.3:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#363648 · ΔE 5.8

Deuteranopia

#353447 · ΔE 6.6

Tritanopia

#324544 · ΔE 12.2

Achromatopsia

#3a3a3a · ΔE 8.9

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

Code

CSS

background-color: #313b4b;

Tailwind (arbitrary value)

bg-[#313b4b]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#313b4b (#313b4b) is rgb(49, 59, 75) in RGB.

No, #313b4b 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 #313b4b, or check how it holds up for accessibility.

Generate a palette → Check contrast