#252121

Color #252121

A nearly neutral, gray-leaning very dark red.

Closest named color Black #000000 · ΔE 13.32 Nearest Tailwind class stone-800 #292524 · ΔE 1.4

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Conversions

HEX

#252121

RGB

rgb(37, 33, 33)

HSL

hsl(0, 5.7%, 13.7%)

HSV / HSB

hsv(0, 10.8%, 14.5%)

CMYK

cmyk(0%, 10.8%, 10.8%, 85.5%)

LAB

lab(13.17, 1.89, 0.69)

LCH

lch(13.17, 2.01, 20.06)

OKLCH

oklch(25.2%, 0.0061, 17.24)

HWB

hwb(0, 12.9%, 85.5%)

Harmony colors

Complementary

#212525

Analogous

#252123

#252121

#252321

Triadic

#252121

#212521

#212125

Split-complementary

#252121

#212523

#212325

Tetradic

#252121

#252521

#212525

#212125

Square

#252121

#232521

#212525

#232125

Shades

Color #252121 mixed toward black.

#1f1b1b

#191616

#121010

#0c0b0b

#060505

Tints

Color #252121 mixed toward white.

#4c4444

#726666

#978b8b

#bab1b1

#dcd8d8

Tones

Color #252121 mixed toward gray.

#252121

#242222

#232323

Accessibility

Aa White text on this color

15.93:1

Aa Black text on this color

1.32:1

White text reads better on this background (15.93:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#232321 · ΔE 3.5

Deuteranopia

#242421 · ΔE 4.1

Tritanopia

#252121 · ΔE 0

Achromatopsia

#222222 · ΔE 2.7

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

Code

CSS

background-color: #252121;

Tailwind (arbitrary value)

bg-[#252121]

Related colors

Red #ff0000

Maroon #800000

Black #000000

Brown #a52a2a

Dark Gray #a9a9a9

Dark Red #8b0000

Frequently asked questions

#252121 (#252121) is rgb(37, 33, 33) in RGB.

No, #252121 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 #252121, or check how it holds up for accessibility.

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