#0000ff
#0000ff converts to rgb(0, 0, 255) and hsl(240, 100%, 50%). Its nearest Tailwind CSS token is blue-700 and it appears in 4 curated design styles in the StyleKit library.
Conversions
WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 8.59:1 | pass | pass | pass |
| black | 2.44:1 | fail | fail | fail |
| slate-900 | 2.08:1 | fail | fail | fail |
| gray-100 | 7.81:1 | 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.
Design styles using this color
Tints and shades
Lightness ladder in HSL space, from the lightest tint to the darkest shade of #0000ff.
Similar colors in the library
Nearest swatches by perceptual OKLab distance across all curated style palettes.
AI prompt snippet
Use #0000ff as the accent color, following the Anti-Design style: rgb(0, 0, 255), nearest Tailwind token blue-700. Keep text contrast at least 4.5:1 (this color scores 8.59:1 on white, 2.44:1 on black).
Paste this into ChatGPT, Claude, Cursor, or v0 to use #0000ff with correct contrast constraints. Browse all palette colors.