Color specimenNo. 12131356

#B91C1C

Bright Red

A deterministic reference card for #B91C1C. Every value, scheme, and snippet below is computed from the hex — no database, no guesswork.

RGB
185, 28, 28
HSL
0°, 74%, 42%
Text
White on top

Tailwind CSS · red

tailwind · red 700

The Tailwind CSS utility classes bg-red-700, text-red-700, and friends all reference this hex value.

Scale context · red

Click any step to jump to its landing page.

Class name
red-700
Hex
#B91C1C
Closest CSS named color
firebrick
Full color breakdown
/color/b91c1c

Developer snippets

Copy-ready code

Every snippet below is generated from the hex — not a hand-maintained table.

Conversions

Same color, seven encodings

Nearest matches

Closest in other design systems

Accessibility

Contrast against white & black

On white

The quick brown fox

Jumps over the lazy dog. Testing readability of #B91C1C as the text color.

6.47:1
AA passAAA failLarge pass

Rating · AA

On black

The quick brown fox

Jumps over the lazy dog. Testing readability of #B91C1C as the text color.

3.25:1
AA failAAA failLarge pass

Rating · AA Large

Recommendation

When using #B91C1C as a background, pair it with #ffffff text for the best WCAG contrast.

Contrast ratios only — one part of WCAG 2.1. Not a certification of accessibility or legal compliance.

Related Tailwind swatches

Other stops in red