#f5f5f5
#f5f5f5 is rgb(245, 245, 245), or hsl(0, 0%, 96%). It exactly matches the sRGB hex approximation of neutral-100 in the reference Tailwind v4 palette.
Conversions
WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 1.09:1 | fail | fail | fail |
| black | 19.26:1 | pass | pass | pass |
| slate-900 | 16.38:1 | pass | pass | pass |
| gray-100 | 1.01:1 | 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 #f5f5f5 in real UI palettes
These colors appear alongside #f5f5f5 in StyleKit's curated palettes. Co-occurrence is not a promise of text readability; each pair includes its measured contrast.
- #16c79a
Used together in Masonry Flow.
1.99:1
Not for normal text - #1a1a1a
Used together in Neo-Brutalist Soft.
15.96:1
AA normal text - #1a1a2e
Used together in Masonry Flow.
15.65:1
AA normal text - #38bdf8
Used together in Neo-Brutalist Soft.
1.96:1
Not for normal text - #7579e7
Used together in Masonry Flow.
3.41:1
Not for normal text - #a3e635
Used together in Neo-Brutalist Soft.
1.38:1
Not for normal text
A readable starting point
black text on #f5f5f5: 19.26:1 contrast.
Design styles using this color
Tints and shades
Lightness ladder in HSL space, from the lightest tint to the darkest shade of #f5f5f5.
Similar colors in the library
Nearest swatches by perceptual OKLab distance across all curated style palettes.
AI prompt snippet
Use #f5f5f5 as the secondary color, following the Masonry Flow style: rgb(245, 245, 245), nearest Tailwind token neutral-100. Keep text contrast at least 4.5:1 (this color scores 1.09:1 on white, 19.26:1 on black).
Paste this into ChatGPT, Claude, Cursor, or v0 to use #f5f5f5 with correct contrast constraints. Browse all palette colors.
Questions about #f5f5f5
What color is #f5f5f5?
#f5f5f5 is rgb(245, 245, 245), or hsl(0, 0%, 96%). It exactly matches the sRGB hex approximation of neutral-100 in the reference Tailwind v4 palette.
What text color should I use on #f5f5f5?
Black (#000000) has the higher black-or-white contrast against #f5f5f5: 19.26:1. 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 #f5f5f5 in Tailwind CSS?
Use bg-[#f5f5f5], text-[#f5f5f5], 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.