#21152e
#21152e converts to rgb(33, 21, 46) and hsl(269, 37%, 13%). Its nearest Tailwind CSS token is slate-900.
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Conversions
02
WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 17.34:1 | pass | pass | pass |
| black | 1.21:1 | fail | fail | fail |
| slate-900 | 1.03:1 | fail | fail | fail |
| gray-100 | 15.75:1 | 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.
03
Tints and shades
Lightness ladder in HSL space, from the lightest tint to the darkest shade of #21152e.
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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 #21152e (rgb(33, 21, 46), nearest Tailwind token slate-900) as an accent. Keep text contrast at least 4.5:1 — this color scores 17.34:1 on white and 1.21:1 on black.
Paste this into ChatGPT, Claude, Cursor, or v0 to use #21152e with correct contrast constraints. Browse all palette colors.