#252531

Color #252531

A nearly neutral, gray-leaning very dark blue.

Closest named color Charcoal #36454f · ΔE 14.74 Nearest Tailwind class mauve-800 #2a212c · ΔE 4.9

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

Conversions

HEX

#252531

RGB

rgb(37, 37, 49)

HSL

hsl(240, 14%, 16.9%)

HSV / HSB

hsv(240, 24.5%, 19.2%)

CMYK

cmyk(24.5%, 24.5%, 0%, 80.8%)

LAB

lab(15.16, 3.24, -7.84)

LCH

lch(15.16, 8.48, 292.45)

OKLCH

oklch(27%, 0.0221, 284.91)

HWB

hwb(240, 14.5%, 80.8%)

Harmony colors

Complementary

#313125

Analogous

#252b31

#252531

#2b2531

Triadic

#252531

#312525

#253125

Split-complementary

#252531

#312b25

#2b3125

Tetradic

#252531

#312531

#313125

#253125

Square

#252531

#31252b

#313125

#25312b

Shades

Color #252531 mixed toward black.

#1f1f29

#191921

#131319

#0c0c10

#060608

Tints

Color #252531 mixed toward white.

#434359

#626282

#8686a4

#aeaec2

#d7d7e1

Tones

Color #252531 mixed toward gray.

#262630

#27272f

#28282e

#29292d

#2a2a2c

Accessibility

Aa White text on this color

15.13:1

Aa Black text on this color

1.39:1

White text reads better on this background (15.13:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#25252e · ΔE 1.7

Deuteranopia

#25252e · ΔE 1.7

Tritanopia

#252c2c · ΔE 10

Achromatopsia

#262626 · ΔE 7.6

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

Code

CSS

background-color: #252531;

Tailwind (arbitrary value)

bg-[#252531]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#252531 (#252531) is rgb(37, 37, 49) in RGB.

No, #252531 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #252531, or check how it holds up for accessibility.

Generate a palette → Check contrast