#ffcc00
#ffcc00 is rgb(255, 204, 0), or hsl(48, 100%, 50%). The nearest reference Tailwind v4 token is yellow-400 (#fdc700), not an exact match.
Conversions
WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 1.51:1 | fail | fail | fail |
| black | 13.89:1 | pass | pass | pass |
| slate-900 | 11.81:1 | pass | pass | pass |
| gray-100 | 1.37:1 | fail | fail | fail |
Ratios use WCAG relative luminance for opaque sRGB colors. Normal text requires 4.5:1, or 7:1 at AAA. Large text requires 3:1: at least 24 CSS pixels, or about 18.67 CSS pixels when bold. Pass/fail uses the unrounded ratio. Contrast alone is not a full accessibility assessment.
Colors paired with #ffcc00 in real UI palettes
These colors appear alongside #ffcc00 in StyleKit's curated palettes. Co-occurrence is not a promise of text readability; each pair includes its measured contrast.
- #ffffff
Used together in Asymmetric Grid, Bauhaus and 5 more styles.
1.51:1
Not for normal text - #000000
Used together in Bauhaus, Minimalist Flat and 3 more styles.
13.89:1
AA normal text - #ff0000
Used together in Bauhaus, Swiss International and 1 more styles.
2.64:1
Not for normal text - #0057b8
Used together in Swiss International, Swiss Poster.
4.55:1
AA normal text - #ff3366
Used together in Asymmetric Grid, Minimalist Flat.
2.35:1
Not for normal text 5.68:1
AA normal text
A readable starting point
black text on #ffcc00: 13.89:1 contrast.
Design styles using this color
Tints and shades
Lightness ladder in HSL space, from the lightest tint to the darkest shade of #ffcc00.
Similar colors in the library
Nearest swatches by perceptual OKLab distance across all curated style palettes.
AI prompt snippet
Use #ffcc00 as the accent color, following the Asymmetric Grid style: rgb(255, 204, 0), nearest Tailwind token yellow-400. Keep text contrast at least 4.5:1 (this color scores 1.51:1 on white, 13.89:1 on black).
Paste this into ChatGPT, Claude, Cursor, or v0 to use #ffcc00 with correct contrast constraints. Browse all palette colors.
Questions about #ffcc00
What color is #ffcc00?
#ffcc00 is rgb(255, 204, 0), or hsl(48, 100%, 50%). The nearest reference Tailwind v4 token is yellow-400 (#fdc700), not an exact match.
What text color should I use on #ffcc00?
Black (#000000) has the higher black-or-white contrast against #ffcc00: 13.89:1. This calculation assumes opaque, flat sRGB colors. Normal text requires 4.5:1 and large text 3:1 under WCAG 2.2 SC 1.4.3; it is not a complete accessibility assessment.
How can I use exactly #ffcc00 in Tailwind CSS?
Use bg-[#ffcc00], text-[#ffcc00], or a CSS custom property instead of substituting a nearby named token. The reference palette is Tailwind CSS 4.1.18, converted from OKLCH to sRGB hex; newer Tailwind versions and custom themes can differ.
Sources and calculation limits
Reference palette: Tailwind CSS 4.1.18, converted from OKLCH to sRGB hex. Named tokens are versioned approximations; use the exact hex utilities when matching an existing design. Palette pairings come from the linked StyleKit definitions, not external popularity or preference data.