#243b71
#243b71 converts to rgb(36, 59, 113) and hsl(222, 52%, 29%). Its nearest Tailwind CSS token is sky-900.
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Conversions
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WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 10.83:1 | pass | pass | pass |
| black | 1.94:1 | fail | fail | fail |
| slate-900 | 1.65:1 | fail | fail | fail |
| gray-100 | 9.84:1 | pass | pass | pass |
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 #243b71.
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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 #243b71 (rgb(36, 59, 113), nearest Tailwind token sky-900) as an accent. Keep text contrast at least 4.5:1 — this color scores 10.83:1 on white and 1.94:1 on black.
Paste this into ChatGPT, Claude, Cursor, or v0 to use #243b71 with correct contrast constraints. Browse all palette colors.