#21374e

Color #21374e

A moderately saturated dark blue.

Closest named color Charcoal #36454f · ΔE 10.9 Nearest Tailwind class slate-700 #314158 · ΔE 3.9

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Conversions

HEX

#21374e

RGB

rgb(33, 55, 78)

HSL

hsl(210.7, 40.5%, 21.8%)

HSV / HSB

hsv(210.7, 57.7%, 30.6%)

CMYK

cmyk(57.7%, 29.5%, 0%, 69.4%)

LAB

lab(22.32, -0.95, -16.72)

LCH

lch(22.32, 16.75, 266.75)

OKLCH

oklch(33%, 0.0497, 250.62)

HWB

hwb(210.7, 12.9%, 69.4%)

Harmony colors

Complementary

#4e3821

Analogous

#214e4e

#21374e

#22214e

Triadic

#21374e

#4e2137

#374e21

Split-complementary

#21374e

#4e2221

#4e4e21

Tetradic

#21374e

#38214e

#4e3821

#374e21

Square

#21374e

#4e214e

#4e3821

#214e22

Shades

Color #21374e mixed toward black.

#1c2e41

#162534

#111c27

#0b121a

#06090d

Tints

Color #21374e mixed toward white.

#35587d

#4979ab

#739ac4

#a2bcd7

#d0ddeb

Tones

Color #21374e mixed toward gray.

#25374a

#293747

#2c3743

#30373f

#34383b

Accessibility

Aa White text on this color

12.2:1

Aa Black text on this color

1.72:1

White text reads better on this background (12.2:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2c2c49 · ΔE 10.3

Deuteranopia

#2b2948 · ΔE 11.3

Tritanopia

#224544 · ΔE 15.7

Achromatopsia

#353535 · ΔE 12.2

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

Code

CSS

background-color: #21374e;

Tailwind (arbitrary value)

bg-[#21374e]

Related colors

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Light Steel Blue #b0c4de

Steel Blue #4682b4

Frequently asked questions

#21374e (#21374e) is rgb(33, 55, 78) in RGB.

No, #21374e 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.

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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 #21374e, or check how it holds up for accessibility.

Generate a palette → Check contrast