#21252f

Color #21252f

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 14.38 Nearest Tailwind class gray-800 #1e2939 · ΔE 3.6

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#21252f

RGB

rgb(33, 37, 47)

HSL

hsl(222.9, 17.5%, 15.7%)

HSV / HSB

hsv(222.9, 29.8%, 18.4%)

CMYK

cmyk(29.8%, 21.3%, 0%, 81.6%)

LAB

lab(14.69, 1.04, -7.17)

LCH

lch(14.69, 7.25, 278.25)

OKLCH

oklch(26.5%, 0.0196, 267.95)

HWB

hwb(222.9, 12.9%, 81.6%)

Harmony colors

Complementary

#2f2b21

Analogous

#212c2f

#21252f

#24212f

Triadic

#21252f

#2f2125

#252f21

Split-complementary

#21252f

#2f2421

#2c2f21

Tetradic

#21252f

#2b212f

#2f2b21

#252f21

Square

#21252f

#2f212c

#2f2b21

#212f24

Shades

Color #21252f mixed toward black.

#1c1f27

#16191f

#111318

#0b0c10

#060608

Tints

Color #21252f mixed toward white.

#3f4659

#5c6783

#818ba6

#abb2c4

#d5d8e1

Tones

Color #21252f mixed toward gray.

#22262e

#23262d

#25272c

#26272a

#272829

Accessibility

Aa White text on this color

15.32:1

Aa Black text on this color

1.37:1

White text reads better on this background (15.32:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#23232d · ΔE 2.4

Deuteranopia

#23222c · ΔE 3.1

Tritanopia

#212b2b · ΔE 8.5

Achromatopsia

#252525 · ΔE 6.3

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

Code

CSS

background-color: #21252f;

Tailwind (arbitrary value)

bg-[#21252f]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#21252f (#21252f) is rgb(33, 37, 47) in RGB.

No, #21252f 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.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #21252f, or check how it holds up for accessibility.

Generate a palette → Check contrast