#66576B

Accessibility

6.69:1

Vs white / black

6.69:1 · 3.14:1

Sources

Library color

Codes

Formats

HEX

#66576b

RGB

rgb(102, 87, 107)

RGBA

rgba(102, 87, 107, 1)

HSL

hsl(285, 10%, 38%)

HSLA

hsla(285, 10%, 38%, 1)

HSV

hsv(285, 19%, 42%)

LAB

lab(39.08% 10.2 -9.17)

LCH

lch(39.08% 13.72 318.04)

OKLAB

oklab(0.4787 0.027 -0.0247)

OKLCH

oklch(0.4787 0.0366 317.55)

XYZ

xyz(11.54, 10.70, 15.36)

CMYK

cmyk(5%, 19%, 0%, 58%)

CSS

color: #66576b;

CSS variable

--color-66576b: #66576b;

SCSS

$color-66576b: #66576b;

JavaScript

const color = "#66576b";

TypeScript

const color: string = "#66576b";

React

style={{ backgroundColor: "#66576b" }}

JSON

{ "hex": "#66576b", "rgb": { "r": 102, "g": 87, "b": 107 }, "oklch": "oklch(0.4787 0.0366 317.55)" }

Export

Developer code

css

:root {
  --#66576b-1: #66576b;
}

Design systems

Nearest official tokens

An arbitrary HEX is not an official Tailwind, Material, or Bootstrap color. Distance is CIEDE2000.

Nearest Tailwind color

zinc-600

Very different · ΔE 9.41 · #52525B

Nearest CSS named color

DimGray

Very different · ΔE 13.58 · #696969

Nearest Material color

grey-700

Very different · ΔE 12.83 · #616161

Nearest Bootstrap color

secondary

Very different · ΔE 17.03 · #6C757D

OKLCH

Perceptual 50–950 scale

Generated in OKLCH from this hex. Not an official Tailwind scale unless the hex itself is a Tailwind token.

50fcf1ff 100efe3f3 200dccfe1 300c7b8cc 400ab9bb1 500908095 600786a7d 700605564 80049404c 900332c36 9501e1821

Palette

Tints & shades

Full scale from light tints through the base color into deep shades

f2f1f3 e6e3e6 d9d5da ccc7ce bfb9c1 b3abb5 a69da9 998f9c 8c8190 807384 736577 66576b 5e5062 554959 4d4150 443a47 3b333e 332c36 2a242d 221d24 1a161b 110e12 090709

Palette

Tints

Mixed toward white — soft backgrounds and highlights

f2f1f3 e6e3e6 d9d5da ccc7ce bfb9c1 b3abb5 a69da9 998f9c 8c8190 807384 736577

Palette

Shades

Mixed toward black — depth, text, and emphasis

5e5062 554959 4d4150 443a47 3b333e 332c36 2a242d 221d24 1a161b 110e12 090709

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

685a6d 6a5e6f 6d6170 6f6572 716874 736c76 756f77 777279 7a767b 7c797d 7e7d7e

Harmony

Complementary

Opposite on the color wheel for contrast

#66576BStop 1 #5C6B57Stop 2

Harmony

Analogous

Neighbors that sit comfortably together

#5C576BStop 1 #66576BStop 2 #6B5766Stop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#66576BStop 1 #6B6657Stop 2 #576B66Stop 3

Harmony

Split complementary

Base plus two accents beside the complement

#66576BStop 1 #666B57Stop 2 #576B5CStop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#362E38Stop 1 #5E5062Stop 2 #86738CStop 3 #AA9DAFStop 4 #CFC7D1Stop 5

Using this color

Where #66576b works

#66576B (#66576b) sits in the purple family at about 285° hue, 10% saturation, and 38% lightness. Contrast is 6.69:1 on white and 3.14:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: zinc-600 (approximation unless the hex is an official scale stop).

Sensible jobs for this swatch

supporting UI accents
text or icons on a white canvas

On a black or near-black UI, #66576b is 3.14:1. Prefer it as a fill, border, or large heading rather than 16px copy.

Low saturation makes this easy to overuse as a neutral. Keep one chromatic accent elsewhere so the interface does not go muddy.

Family context: Imagination, luxury, and wisdom. Frequently used for premium, creative, and tech brands. Common uses still include buttons, charts, and accents in the Purple range — always verify the pair for this exact hex in the contrast checker.

Similar & related colors

Nearby colors from the library by perceptual distance

Material You Secondary#625B71 Tailwind zinc 600#52525B Material You Tertiary#7D5260 Tailwind zinc 500#71717A Web Safe #666699#666699 Chakra gray 600#4A5568 Material Grey 700#616161 Tailwind neutral 600#525252 Web Safe #666666#666666 Fluent Gray#605E5C Tailwind gray 600#4B5563 Tailwind zinc 700#3F3F46