#21313f

Color #21313f

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 9.38 Nearest Tailwind class gray-800 #1e2939 · ΔE 3.9

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Conversions

HEX

#21313f

RGB

rgb(33, 49, 63)

HSL

hsl(208, 31.3%, 18.8%)

HSV / HSB

hsv(208, 47.6%, 24.7%)

CMYK

cmyk(47.6%, 22.2%, 0%, 75.3%)

LAB

lab(19.55, -2.15, -10.89)

LCH

lch(19.55, 11.1, 258.83)

OKLCH

oklch(30.6%, 0.0332, 245.6)

HWB

hwb(208, 12.9%, 75.3%)

Harmony colors

Complementary

#3f2f21

Analogous

#213f3e

#21313f

#21223f

Triadic

#21313f

#3f2131

#313f21

Split-complementary

#21313f

#3f2122

#3f3e21

Tetradic

#21313f

#2f213f

#3f2f21

#313f21

Square

#21313f

#3e213f

#3f2f21

#223f21

Shades

Color #21313f mixed toward black.

#1b2934

#16212a

#10181f

#0b1015

#05080a

Tints

Color #21313f mixed toward white.

#39546c

#50779a

#779ab8

#a4bbd0

#d2dde7

Tones

Color #21313f mixed toward gray.

#23313c

#26313a

#283037

#2b3035

#2d3032

Accessibility

Aa White text on this color

13.33:1

Aa Black text on this color

1.58:1

White text reads better on this background (13.33:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#29293c · ΔE 9.7

Deuteranopia

#28273b · ΔE 10.6

Tritanopia

#223939 · ΔE 10.2

Achromatopsia

#2f2f2f · ΔE 9

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

Code

CSS

background-color: #21313f;

Tailwind (arbitrary value)

bg-[#21313f]

Related colors

Alice Blue #f0f8ff

Steel Blue #4682b4

Dodger Blue #1e90ff

Light Slate Gray #778899

Slate Gray #708090

Charcoal #36454f

Frequently asked questions

#21313f (#21313f) is rgb(33, 49, 63) in RGB.

No, #21313f 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.

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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 #21313f, or check how it holds up for accessibility.

Generate a palette → Check contrast