#21333f

Color #21333f

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 8.37 Nearest Tailwind class cyan-950 #053345 · ΔE 4.8

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Conversions

HEX

#21333f

RGB

rgb(33, 51, 63)

HSL

hsl(204, 31.3%, 18.8%)

HSV / HSB

hsv(204, 47.6%, 24.7%)

CMYK

cmyk(47.6%, 19%, 0%, 75.3%)

LAB

lab(20.24, -3.5, -9.83)

LCH

lch(20.24, 10.43, 250.4)

OKLCH

oklch(31.1%, 0.032, 238.3)

HWB

hwb(204, 12.9%, 75.3%)

Harmony colors

Complementary

#3f2d21

Analogous

#213f3c

#21333f

#21243f

Triadic

#21333f

#3f2133

#333f21

Split-complementary

#21333f

#3f2124

#3f3c21

Tetradic

#21333f

#2d213f

#3f2d21

#333f21

Square

#21333f

#3c213f

#3f2d21

#243f21

Shades

Color #21333f mixed toward black.

#1b2a34

#16222a

#10191f

#0b1115

#05080a

Tints

Color #21333f mixed toward white.

#39586c

#507c9a

#779eb8

#a4bed0

#d2dfe7

Tones

Color #21333f mixed toward gray.

#23323c

#26323a

#283137

#2b3135

#2d3032

Accessibility

Aa White text on this color

13.04:1

Aa Black text on this color

1.61:1

White text reads better on this background (13.04:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2a2a3c · ΔE 11

Deuteranopia

#29273c · ΔE 13

Tritanopia

#223a3a · ΔE 8.8

Achromatopsia

#313131 · ΔE 8.9

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

Code

CSS

background-color: #21333f;

Tailwind (arbitrary value)

bg-[#21333f]

Related colors

Charcoal #36454f

Light Sky Blue #87cefa

Steel Blue #4682b4

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Light Slate Gray #778899

Frequently asked questions

#21333f (#21333f) is rgb(33, 51, 63) in RGB.

No, #21333f 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 #21333f, or check how it holds up for accessibility.

Generate a palette → Check contrast