#557ca3
#557ca3 converts to rgb(85, 124, 163) and hsl(210, 31%, 49%). Its nearest Tailwind CSS token is slate-500.
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Conversions
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WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 4.38:1 | fail | pass | fail |
| black | 4.80:1 | pass | pass | fail |
| slate-900 | 4.08:1 | fail | pass | fail |
| gray-100 | 3.98:1 | 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.
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Tints and shades
Lightness ladder in HSL space, from the lightest tint to the darkest shade of #557ca3.
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Similar colors in the library
Nearest swatches by perceptual OKLab distance across all curated style palettes.
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AI prompt snippet
Use #557ca3 (rgb(85, 124, 163), nearest Tailwind token slate-500) as an accent. Keep text contrast at least 4.5:1 — this color scores 4.38:1 on white and 4.8:1 on black.
Paste this into ChatGPT, Claude, Cursor, or v0 to use #557ca3 with correct contrast constraints. Browse all palette colors.