#1c4a87 Hex Color
#1c4a87 is rgb(28, 74, 135), or hsl(214, 66%, 32%). The nearest reference Tailwind v4 token is sky-900 (#024a70), not an exact match. Used as an accent color in the Kinetic Constructivism palette.
Conversions
WCAG contrast
| Background | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|
| white | 8.83:1 | pass | pass | pass |
| black | 2.38:1 | fail | fail | fail |
| slate-900 | 2.02:1 | fail | fail | fail |
| gray-100 | 8.02:1 | pass | pass | pass |
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 #1c4a87 in real UI palettes
These colors appear alongside #1c4a87 in StyleKit's curated palettes. Co-occurrence is not a promise of text readability; each pair includes its measured contrast.
- #17130e
Used together in Kinetic Constructivism.
2.09:1
Not for normal text - #e0231b
Used together in Kinetic Constructivism.
1.86:1
Not for normal text - #efe9dc
Used together in Kinetic Constructivism.
7.30:1
AA normal text - #f4b301
Used together in Kinetic Constructivism.
4.75:1
AA normal text
A readable starting point
white text on #1c4a87: 8.83:1 contrast.
Design styles using this color
Tints and shades
Lightness ladder in HSL space, from the lightest tint to the darkest shade of #1c4a87.
Similar colors in the library
Nearest swatches by perceptual OKLab distance across all curated style palettes.
AI prompt snippet
Use #1c4a87 as the accent color, following the Kinetic Constructivism style: rgb(28, 74, 135), nearest Tailwind token sky-900. Keep text contrast at least 4.5:1 (this color scores 8.83:1 on white, 2.38:1 on black).
Paste this into ChatGPT, Claude, Cursor, or v0 to use #1c4a87 with correct contrast constraints. Browse all palette colors.
Questions about #1c4a87
What color is #1c4a87?
#1c4a87 is rgb(28, 74, 135), or hsl(214, 66%, 32%). The nearest reference Tailwind v4 token is sky-900 (#024a70), not an exact match. Used as an accent color in the Kinetic Constructivism palette.
What text color should I use on #1c4a87?
White (#ffffff) has the higher black-or-white contrast against #1c4a87: 8.83:1. 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 #1c4a87 in Tailwind CSS?
Use bg-[#1c4a87], text-[#1c4a87], 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.