Accessibility
Vs white / black
2.01:1 · 10.44:1
Sources
Codes
HEX
#b1b8bb
RGB
rgb(177, 184, 187)
RGBA
rgba(177, 184, 187, 1)
HSL
hsl(198, 7%, 71%)
HSLA
hsla(198, 7%, 71%, 1)
HSV
hsv(198, 5%, 73%)
LAB
lab(74.33% -1.85 -2.36)
LCH
lch(74.33% 3 231.91)
OKLAB
oklab(0.778 -0.0063 -0.0063)
OKLCH
oklch(0.778 0.0089 225)
XYZ
xyz(44.24, 47.22, 53.79)
CMYK
cmyk(5%, 2%, 0%, 27%)
CSS
color: #b1b8bb;
CSS variable
--color-b1b8bb: #b1b8bb;
SCSS
$color-b1b8bb: #b1b8bb;
JavaScript
const color = "#b1b8bb";
TypeScript
const color: string = "#b1b8bb";
React
style={{ backgroundColor: "#b1b8bb" }}
JSON
{ "hex": "#b1b8bb", "rgb": { "r": 177, "g": 184, "b": 187 }, "oklch": "oklch(0.778 0.0089 225)" }
Export
:root {
--#b1b8bb-1: #b1b8bb;
}Design systems
An arbitrary HEX is not an official Tailwind, Material, or Bootstrap color. Distance is CIEDE2000.
Nearest Tailwind color
neutral-400
Very different · ΔE 6.56 · #A3A3A3
Nearest CSS named color
Silver
Noticeably different · ΔE 4.15 · #C0C0C0
Nearest Material color
blue-grey-200
Noticeably different · ΔE 3.21 · #B0BEC5
Nearest Bootstrap color
light
Very different · ΔE 15.58 · #F8F9FA
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
Using this color
#B1B8BB (#b1b8bb) sits in the grey family at about 198° hue, 7% saturation, and 71% lightness. Contrast is 2.01:1 on white and 10.44:1 on black, so near-black labels read more clearly on the swatch itself. Nearest Tailwind token: neutral-400 (approximation unless the hex is an official scale stop).
Sensible jobs for this swatch
Do not use #b1b8bb as small body text on white — 2.01:1 misses WCAG AA (4.5:1). Pair it with a darker shade from the scale below, or check pairs in the contrast checker.
Low saturation makes this easy to overuse as a neutral. Keep one chromatic accent elsewhere so the interface does not go muddy.
Family context: Neutrality, balance, and modernity. Essential for UI chrome, typography, and systems. Common uses still include buttons, charts, and accents in the Grey range — always verify the pair for this exact hex in the contrast checker.
Related
Nearby colors from the library by perceptual distance