#6366f1
#6366f1 converts to rgb(99, 102, 241) and hsl(239, 84%, 67%). Its nearest Tailwind CSS token is indigo-500 and it appears in 6 curated design styles in the StyleKit library.
Conversions
WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 4.47:1 | fail | pass | fail |
| black | 4.70:1 | pass | pass | fail |
| slate-900 | 4.00:1 | fail | pass | fail |
| gray-100 | 4.06:1 | 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.
Design styles using this color
Tints and shades
Lightness ladder in HSL space, from the lightest tint to the darkest shade of #6366f1.
Similar colors in the library
Nearest swatches by perceptual OKLab distance across all curated style palettes.
AI prompt snippet
Use #6366f1 as the accent color, following the Dashboard Layout style: rgb(99, 102, 241), nearest Tailwind token indigo-500. Keep text contrast at least 4.5:1 (this color scores 4.47:1 on white, 4.7:1 on black).
Paste this into ChatGPT, Claude, Cursor, or v0 to use #6366f1 with correct contrast constraints. Browse all palette colors.