#f9fafb
#f9fafb is rgb(249, 250, 251), or hsl(210, 20%, 98%). It exactly matches the sRGB hex approximation of gray-50 in the reference Tailwind v4 palette.
Conversions
WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 1.05:1 | fail | fail | fail |
| black | 20.10:1 | pass | pass | pass |
| slate-900 | 17.08:1 | pass | pass | pass |
| gray-100 | 1.05:1 | 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 #f9fafb in real UI palettes
These colors appear alongside #f9fafb in StyleKit's curated palettes. Co-occurrence is not a promise of text readability; each pair includes its measured contrast.
- #10b981
Used together in Dashboard Layout.
2.43:1
Not for normal text - #111827
Used together in Dashboard Layout.
16.98:1
AA normal text - #6366f1
Used together in Dashboard Layout.
4.27:1
Not for normal text - #ef4444
Used together in Dashboard Layout.
3.60:1
Not for normal text - #f59e0b
Used together in Dashboard Layout.
2.06:1
Not for normal text
A readable starting point
black text on #f9fafb: 20.10:1 contrast.
Design styles using this color
Tints and shades
Lightness ladder in HSL space, from the lightest tint to the darkest shade of #f9fafb.
Similar colors in the library
Nearest swatches by perceptual OKLab distance across all curated style palettes.
AI prompt snippet
Use #f9fafb as the secondary color, following the Dashboard Layout style: rgb(249, 250, 251), nearest Tailwind token gray-50. Keep text contrast at least 4.5:1 (this color scores 1.05:1 on white, 20.1:1 on black).
Paste this into ChatGPT, Claude, Cursor, or v0 to use #f9fafb with correct contrast constraints. Browse all palette colors.
Questions about #f9fafb
What color is #f9fafb?
#f9fafb is rgb(249, 250, 251), or hsl(210, 20%, 98%). It exactly matches the sRGB hex approximation of gray-50 in the reference Tailwind v4 palette.
What text color should I use on #f9fafb?
Black (#000000) has the higher black-or-white contrast against #f9fafb: 20.10:1. 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 #f9fafb in Tailwind CSS?
Use bg-[#f9fafb], text-[#f9fafb], 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.