#4e66f1
#4e66f1 converts to rgb(78, 102, 241) and hsl(231, 85%, 63%). Its nearest Tailwind CSS token is indigo-500.
01
Conversions
02
WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 4.67:1 | pass | pass | fail |
| black | 4.49:1 | fail | pass | fail |
| slate-900 | 3.82:1 | fail | pass | fail |
| gray-100 | 4.25:1 | fail | pass | fail |
Ratios are computed from WCAG 2.x relative luminance. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
03
Tints and shades
Lightness ladder in HSL space, from the lightest tint to the darkest shade of #4e66f1.
04
Similar colors in the library
Nearest swatches by perceptual OKLab distance across all curated style palettes.
05
AI prompt snippet
Use #4e66f1 (rgb(78, 102, 241), nearest Tailwind token indigo-500) as an accent. Keep text contrast at least 4.5:1 — this color scores 4.67:1 on white and 4.49:1 on black.
Paste this into ChatGPT, Claude, Cursor, or v0 to use #4e66f1 with correct contrast constraints. Browse all palette colors.