#566A5B

Accessibility

5.82:1

Vs white / black

5.82:1 · 3.61:1

Sources

Library color

Codes

Formats

HEX

#566a5b

RGB

rgb(86, 106, 91)

RGBA

rgba(86, 106, 91, 1)

HSL

hsl(135, 10%, 38%)

HSLA

hsla(135, 10%, 38%, 1)

HSV

hsv(135, 19%, 42%)

LAB

lab(42.83% -10.79 5.96)

LCH

lch(42.83% 12.33 151.09)

OKLAB

oklab(0.5032 -0.0299 0.0155)

OKLCH

oklch(0.5032 0.0337 152.6)

XYZ

xyz(10.88, 13.04, 11.84)

CMYK

cmyk(19%, 0%, 14%, 58%)

CSS

color: #566a5b;

CSS variable

--color-566a5b: #566a5b;

SCSS

$color-566a5b: #566a5b;

JavaScript

const color = "#566a5b";

TypeScript

const color: string = "#566a5b";

React

style={{ backgroundColor: "#566a5b" }}

JSON

{ "hex": "#566a5b", "rgb": { "r": 86, "g": 106, "b": 91 }, "oklch": "oklch(0.5032 0.0337 152.6)" }

Export

Developer code

css

:root {
  --#566a5b-1: #566a5b;
}

Design systems

Nearest official tokens

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

Nearest Tailwind color

teal-800

Very different · ΔE 12.74 · #115E59

Nearest CSS named color

DarkSlateGray

Very different · ΔE 12.46 · #2F4F4F

Nearest Material color

grey-700

Very different · ΔE 12.5 · #616161

Nearest Bootstrap color

secondary

Very different · ΔE 14.98 · #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.

50ebf9ef 100ddece1 200c8dacc 300b0c4b5 40092a898 500778c7d 600637568 7004f5e52 8003b473e 90028322a 950141d16

Palette

Tints & shades

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

f1f3f1 e3e6e4 d5dad6 c7cdc8 b9c1bb abb5ad 9ca89f 8e9c92 808f84 728376 647669 566a5b 4f6153 48584c 415044 39473d 323e35 2b352e 242c26 1d231e 161b17 0e120f 070908

Palette

Tints

Mixed toward white — soft backgrounds and highlights

f1f3f1 e3e6e4 d5dad6 c7cdc8 b9c1bb abb5ad 9ca89f 8e9c92 808f84 728376 647669

Palette

Shades

Mixed toward black — depth, text, and emphasis

4f6153 48584c 415044 39473d 323e35 2b352e 242c26 1d231e 161b17 0e120f 070908

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

5a6c5e 5d6e61 617064 647167 68736a 6b756e 6f7771 727974 767b77 797c7a 7d7e7d

Harmony

Complementary

Opposite on the color wheel for contrast

#566A5BStop 1 #6B5766Stop 2

Harmony

Analogous

Neighbors that sit comfortably together

#5C6B57Stop 1 #566A5BStop 2 #576B66Stop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#566A5BStop 1 #5C576BStop 2 #6B5C57Stop 3

Harmony

Split complementary

Base plus two accents beside the complement

#566A5BStop 1 #66576BStop 2 #6B575CStop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#2E3830Stop 1 #506255Stop 2 #738C79Stop 3 #9DAFA1Stop 4 #C7D1C9Stop 5

Using this color

Where #566a5b works

#566A5B (#566a5b) sits in the green family at about 135° hue, 10% saturation, and 38% lightness. Contrast is 5.82:1 on white and 3.61:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: teal-800 (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, #566a5b is 3.61:1. 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: Growth, nature, and success. Strong for finance positives, eco brands, and health. Common uses still include buttons, charts, and accents in the Green range — always verify the pair for this exact hex in the contrast checker.

Similar & related colors

Nearby colors from the library by perceptual distance

Spectrum #2C6357#2C6357 Spectrum #286755#286755 Web Safe #336666#336666 Spectrum #3A7871#3A7871 Spectrum #266E54#266E54 Spectrum #35795A#35795A American River#636E72 Spectrum #2A6F6E#2A6F6E Spectrum #2E686B#2E686B Spectrum #25746C#25746C Spectrum #357347#357347 Spectrum #227768#227768