#2d5b63
#2d5b63 is rgb(45, 91, 99), or hsl(189, 38%, 28%). The nearest reference Tailwind v4 token is teal-800 (#005f5a), not an exact match.
Conversions
WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 7.53:1 | pass | pass | pass |
| black | 2.79:1 | fail | fail | fail |
| slate-900 | 2.37:1 | fail | fail | fail |
| gray-100 | 6.84:1 | pass | 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 #2d5b63 in real UI palettes
These colors appear alongside #2d5b63 in StyleKit's curated palettes. Co-occurrence is not a promise of text readability; each pair includes its measured contrast.
- #a9d8cc
Used together in Soft Utility.
4.80:1
AA normal text - #b8c9ed
Used together in Soft Utility.
4.52:1
AA normal text - #e6b7b0
Used together in Soft Utility.
4.22:1
Not for normal text - #f3c98b
Used together in Soft Utility.
4.86:1
AA normal text - #f4f8f6
Used together in Soft Utility.
7.03:1
AA normal text
A readable starting point
white text on #2d5b63: 7.53:1 contrast.
Design styles using this color
Tints and shades
Lightness ladder in HSL space, from the lightest tint to the darkest shade of #2d5b63.
Similar colors in the library
Nearest swatches by perceptual OKLab distance across all curated style palettes.
AI prompt snippet
Use #2d5b63 as the primary color, following the Soft Utility style: rgb(45, 91, 99), nearest Tailwind token teal-800. Keep text contrast at least 4.5:1 (this color scores 7.53:1 on white, 2.79:1 on black).
Paste this into ChatGPT, Claude, Cursor, or v0 to use #2d5b63 with correct contrast constraints. Browse all palette colors.
Questions about #2d5b63
What color is #2d5b63?
#2d5b63 is rgb(45, 91, 99), or hsl(189, 38%, 28%). The nearest reference Tailwind v4 token is teal-800 (#005f5a), not an exact match.
What text color should I use on #2d5b63?
White (#ffffff) has the higher black-or-white contrast against #2d5b63: 7.53:1. 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 #2d5b63 in Tailwind CSS?
Use bg-[#2d5b63], text-[#2d5b63], 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.