#31405b

Color #31405b

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 11.45 Nearest Tailwind class slate-700 #314158 · ΔE 2

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Conversions

HEX

#31405b

RGB

rgb(49, 64, 91)

HSL

hsl(218.6, 30%, 27.5%)

HSV / HSB

hsv(218.6, 46.2%, 35.7%)

CMYK

cmyk(46.2%, 29.7%, 0%, 64.3%)

LAB

lab(26.95, 2.08, -17.99)

LCH

lch(26.95, 18.11, 276.6)

OKLCH

oklch(37.1%, 0.0507, 261.84)

HWB

hwb(218.6, 19.2%, 64.3%)

Harmony colors

Complementary

#5b4c31

Analogous

#31555b

#31405b

#37315b

Triadic

#31405b

#5b3140

#405b31

Split-complementary

#31405b

#5b3731

#555b31

Tetradic

#31405b

#4c315b

#5b4c31

#405b31

Square

#31405b

#5b3155

#5b4c31

#315b37

Shades

Color #31405b mixed toward black.

#29354c

#212b3d

#19202e

#10151e

#080b0f

Tints

Color #31405b mixed toward white.

#475c83

#5f79a9

#879bbe

#afbcd4

#d7dee9

Tones

Color #31405b mixed toward gray.

#354158

#384254

#3c4351

#3f444d

#43454a

Accessibility

Aa White text on this color

10.42:1

Aa Black text on this color

2.02:1

White text reads better on this background (10.42:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#383855 · ΔE 6.7

Deuteranopia

#373654 · ΔE 7.3

Tritanopia

#325150 · ΔE 17.8

Achromatopsia

#404040 · ΔE 12.9

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

Code

CSS

background-color: #31405b;

Tailwind (arbitrary value)

bg-[#31405b]

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

#31405b (#31405b) is rgb(49, 64, 91) in RGB.

No, #31405b 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 #31405b, or check how it holds up for accessibility.

Generate a palette → Check contrast