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#668E9Ergb(102, 142, 158)hsl(197, 22%, 51%)PUT IT INTO PRACTICE
Try it with another color before you commit.
A little color. A whole lot of possibility.
Selected text: #668E9ENormal 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 ↗
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HEX
#668e9e
RGB
rgb(102, 142, 158)
HSL
hsl(197, 22%, 51%)
OKLCH
oklch(0.6231 0.0502 224.68)
CMYK
cmyk(35%, 10%, 0%, 38%)
CSS variable
--color-668e9e: #668e9e;
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 {
--color668e9e-1: #668e9e;
}Design systems
An arbitrary HEX is not an official Tailwind, Material, or Bootstrap color. Distance is CIEDE2000.
Nearest Tailwind color
cyan-600
Very different · ΔE 8.38 · #0891B2
Nearest CSS named color
LightSlateGray
Very different · ΔE 7.38 · #778899
Nearest Material color
blue-grey-400
Noticeably different · ΔE 4.3 · #78909C
Nearest Bootstrap color
secondary
Very different · ΔE 12.02 · #6C757D
Using this color
#668E9E (#668e9e) sits in the light blue family at about 197° hue, 22% saturation, and 51% lightness. Contrast is 3.54:1 on white and 5.93:1 on black, so near-black labels read more clearly on the swatch itself. Nearest Tailwind token: cyan-600 (approximation unless the hex is an official scale stop).
Sensible jobs for this swatch
Do not use #668e9e as small body text on white — 3.54:1 misses WCAG AA (4.5:1). Pair it with a darker shade from the scale below, or check pairs in the contrast checker.
Family context: Openness, clarity, and communication. Soft and approachable for modern interfaces. Common uses still include buttons, charts, and accents in the Light Blue range — always verify the pair for this exact hex in the contrast checker.
Related
Nearby colors from the library by perceptual distance