Color specimenNo. 01982639

#1E40AF

Bright Blue

A deterministic reference card for #1E40AF. Every value, scheme, and snippet below is computed from the hex — no database, no guesswork.

RGB
30, 64, 175
HSL
226°, 71%, 40%
Text
White on top

Tailwind CSS · blue

tailwind · blue 800

The Tailwind CSS utility classes bg-blue-800, text-blue-800, and friends all reference this hex value.

Scale context · blue

Click any step to jump to its landing page.

Class name
blue-800
Hex
#1E40AF
Closest CSS named color
darkslateblue
Full color breakdown
/color/1e40af

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 #1E40AF as the text color.

8.72:1
AA passAAA passLarge pass

Rating · AAA

On black

The quick brown fox

Jumps over the lazy dog. Testing readability of #1E40AF as the text color.

2.41:1
AA failAAA failLarge fail

Rating · Fail

Recommendation

When using #1E40AF 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 blue