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Explore the codes, find a readable pairing, and see how this color feels in a real design.
#5B6789rgb(91, 103, 137)hsl(224, 20%, 45%)PUT IT INTO PRACTICE
Try it with another color before you commit.
A little color. A whole lot of possibility.
Selected text: #5B6789Normal text: AA 4.5:1, AAA 7:1. Large text: AA 3:1 (24px regular or about 19px bold).
Results use the exact pair, at full opacity. WCAG contrast guidance ↗
A color worth keeping? Save it above or share it.
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HEX
#5b6789
RGB
rgb(91, 103, 137)
HSL
hsl(224, 20%, 45%)
OKLCH
oklch(0.5173 0.056 269.39)
CMYK
cmyk(34%, 25%, 0%, 46%)
CSS variable
--color-5b6789: #5b6789;
CMYK is an approximate reference; print output depends on the color profile. HSV and CMYK are not CSS color functions.
OKLCH
Generated in OKLCH from this hex. Not an official Tailwind scale unless the hex itself is a Tailwind token.
Palette
Full scale from light tints through the base color into deep shades
Palette
Mixed toward white — soft backgrounds and highlights
Palette
Mixed toward black — depth, text, and emphasis
Palette
Mixed toward neutral grey — muted UI surfaces
Harmony
Opposite on the color wheel for contrast
Harmony
Neighbors that sit comfortably together
Harmony
Evenly spaced triad for vibrant sets
Harmony
Base plus two accents beside the complement
Harmony
Same hue, varied lightness and saturation
Export
:root {
--color5b6789-1: #5b6789;
}Design systems
An arbitrary HEX is not an official Tailwind, Material, or Bootstrap color. Distance is CIEDE2000.
Nearest Tailwind color
slate-500
Very different · ΔE 6.65 · #64748B
Nearest CSS named color
SlateGray
Very different · ΔE 12.22 · #708090
Nearest Material color
indigo-400
Very different · ΔE 9.38 · #5C6BC0
Nearest Bootstrap color
secondary
Very different · ΔE 11.84 · #6C757D
Using this color
#5B6789 (#5b6789) sits in the blue family at about 224° hue, 20% saturation, and 45% lightness. Contrast is 5.61:1 on white and 3.75:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: slate-500 (approximation unless the hex is an official scale stop).
Sensible jobs for this swatch
On a black or near-black UI, #5b6789 is 3.75:1. Prefer it as a fill, border, or large heading rather than 16px copy.
Family context: Trust, calm, and professionalism. The most used color in SaaS, finance, and healthcare. Common uses still include buttons, charts, and accents in the Blue range — always verify the pair for this exact hex in the contrast checker.
Related
Nearby colors from the library by perceptual distance