#4a90d9
#4a90d9 is rgb(74, 144, 217), or hsl(211, 65%, 57%). The nearest reference Tailwind v4 token is sky-600 (#0084d1), not an exact match.
Conversions
WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 3.34:1 | fail | pass | fail |
| black | 6.28:1 | pass | pass | fail |
| slate-900 | 5.34:1 | pass | pass | fail |
| gray-100 | 3.04:1 | 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 #4a90d9 in real UI palettes
These colors appear alongside #4a90d9 in StyleKit's curated palettes. Co-occurrence is not a promise of text readability; each pair includes its measured contrast.
3.44:1
Not for normal text- #2d1b69
Used together in Pixel Anime.
4.27:1
Not for normal text - #50c878
Used together in Pixel Anime.
1.57:1
Not for normal text 1.84:1
Not for normal text1.18:1
Not for normal text- #ff6b6b
Used together in Pixel Anime.
1.20:1
Not for normal text
A readable starting point
black text on #4a90d9: 6.28:1 contrast.
Design styles using this color
Tints and shades
Lightness ladder in HSL space, from the lightest tint to the darkest shade of #4a90d9.
Similar colors in the library
Nearest swatches by perceptual OKLab distance across all curated style palettes.
AI prompt snippet
Use #4a90d9 as the accent color, following the Blueprint style: rgb(74, 144, 217), nearest Tailwind token sky-600. Keep text contrast at least 4.5:1 (this color scores 3.34:1 on white, 6.28:1 on black).
Paste this into ChatGPT, Claude, Cursor, or v0 to use #4a90d9 with correct contrast constraints. Browse all palette colors.
Questions about #4a90d9
What color is #4a90d9?
#4a90d9 is rgb(74, 144, 217), or hsl(211, 65%, 57%). The nearest reference Tailwind v4 token is sky-600 (#0084d1), not an exact match.
What text color should I use on #4a90d9?
Black (#000000) has the higher black-or-white contrast against #4a90d9: 6.28:1. 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 #4a90d9 in Tailwind CSS?
Use bg-[#4a90d9], text-[#4a90d9], 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.