What color is #251B29?

#251B29 is #251B29 (37, 27, 41 in RGB; hsl(283, 21%, 13%)). It sits in the purple family. Contrast is 16.57:1 on white and 1.27:1 on black.

Is #251B29 accessible for text?

Yes for normal text on white at 16.57:1 (WCAG AA). Still verify large and small text in a contrast checker before shipping.

How do I use #251B29 in CSS?

Use #251B29, color: #251b29;, or a custom property like --color-251b29: #251b29;. Nearest Tailwind-style token approximation: slate-900. Confirm contrast pairs against WCAG before production.

Color brief · Purple

#251B29 (#251B29) — practical notes

#251B29 (#251b29) sits in the purple family at about 283° hue, 21% saturation, and 13% lightness. Contrast is 16.57:1 on white and 1.27:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: slate-900 (approximation unless the hex is an official scale stop).

body text, chrome, and dark-mode surfaces
text or icons on a white canvas

On a black or near-black UI, #251b29 is 1.27:1. Prefer it as a fill, border, or large heading rather than 16px copy.

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Specs & accessibility references: W3C WCAG 2.1 contrast minimum · MDN CSS color values · CSS Color Module Level 4 · WebAIM contrast guide.

COLOR EXPLORER

THE ORIGINAL SWATCH#251B29

100% opacity · sRGB

YOUR NEXT GREAT ACCENT

#251B29

Explore the codes, find a readable pairing, and see how this color feels in a real design.

purple family Calculated from HEX

HEX#251B29

RGBrgb(37, 27, 41)

HSLhsl(283, 21%, 13%)

PUT IT INTO PRACTICE

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Try it with another color before you commit.

Open full contrast checker

MAKE ROOM FOR SOMETHING GOOD

A little color. A whole lot of possibility.

Selected text: #251B29

Preview textText size 24px

CONTRAST RATIO16.57:1

AA · normal text: Pass
AA · large text: Pass
AAA · normal text: Pass

Normal text: AA 4.5:1, AAA 7:1. Large text: AA 3:1 (24px regular or about 19px bold).

Against white16.57:1

Against black1.27:1

Results use the exact pair, at full opacity. WCAG contrast guidance ↗

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Color codes

HEX

#251b29

RGB

rgb(37, 27, 41)

HSL

hsl(283, 21%, 13%)

OKLCH

oklch(0.2406 0.0298 316.09)

CMYK

cmyk(10%, 34%, 0%, 84%)

CSS variable

--color-251b29: #251b29;

CMYK is an approximate reference; print output depends on the color profile. HSV and CMYK are not CSS color functions.

OKLCH

css

:root {
  --color251b29-1: #251b29;
}

Design systems

Nearest official tokens

An arbitrary HEX is not an official Tailwind, Material, or Bootstrap color. Distance is CIEDE2000.

Nearest Tailwind color

slate-900

Very different · ΔE 8.75 · #0F172A

Nearest CSS named color

Black

Very different · ΔE 12.95 · #000000

Nearest Material color

grey-900

Very different · ΔE 10.96 · #212121

Nearest Bootstrap color

dark

Very different · ΔE 11.51 · #212529

Using this color

Where #251b29 works

Sensible jobs for this swatch

body text, chrome, and dark-mode surfaces
text or icons on a white canvas

On a black or near-black UI, #251b29 is 1.27:1. Prefer it as a fill, border, or large heading rather than 16px copy.

Family context: Imagination, luxury, and wisdom. Frequently used for premium, creative, and tech brands. Common uses still include buttons, charts, and accents in the Purple range — always verify the pair for this exact hex in the contrast checker.

Similar & related colors

Nearby colors from the library by perceptual distance

Material You On Surface#1C1B1F Tailwind slate 900#0F172A Tailwind gray 900#111827 Tailwind zinc 900#18181B Tailwind zinc 800#27272A Tailwind slate 950#020617 Tailwind stone 800#292524 Tailwind gray 950#030712 Material Grey 900#212121 Tailwind slate 800#1E293B Tailwind neutral 800#262626 Tailwind neutral 900#171717