#667eea
#667eea is rgb(102, 126, 234), or hsl(229, 76%, 66%). The nearest reference Tailwind v4 token is indigo-400 (#7c86ff), not an exact match.
Conversions
WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 3.66:1 | fail | pass | fail |
| black | 5.74:1 | pass | pass | fail |
| slate-900 | 4.88:1 | pass | pass | fail |
| gray-100 | 3.33:1 | fail | pass | 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 #667eea in real UI palettes
These colors appear alongside #667eea in StyleKit's curated palettes. Co-occurrence is not a promise of text readability; each pair includes its measured contrast.
- #764ba2
Used together in Glassmorphism.
1.74:1
Not for normal text - #f093fb
Used together in Glassmorphism.
1.79:1
Not for normal text - #f5576c
Used together in Glassmorphism.
1.13:1
Not for normal text
A readable starting point
black text on #667eea: 5.74:1 contrast.
Design styles using this color
Tints and shades
Lightness ladder in HSL space, from the lightest tint to the darkest shade of #667eea.
Similar colors in the library
Nearest swatches by perceptual OKLab distance across all curated style palettes.
AI prompt snippet
Use #667eea as the accent color, following the Glassmorphism style: rgb(102, 126, 234), nearest Tailwind token indigo-400. Keep text contrast at least 4.5:1 (this color scores 3.66:1 on white, 5.74:1 on black).
Paste this into ChatGPT, Claude, Cursor, or v0 to use #667eea with correct contrast constraints. Browse all palette colors.
Questions about #667eea
What color is #667eea?
#667eea is rgb(102, 126, 234), or hsl(229, 76%, 66%). The nearest reference Tailwind v4 token is indigo-400 (#7c86ff), not an exact match.
What text color should I use on #667eea?
Black (#000000) has the higher black-or-white contrast against #667eea: 5.74:1. 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 #667eea in Tailwind CSS?
Use bg-[#667eea], text-[#667eea], 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.