#665A3F

Accessibility

6.78:1

Vs white / black

6.78:1 · 3.1:1

Sources

Library color

Codes

Formats

HEX

#665a3f

RGB

rgb(102, 90, 63)

RGBA

rgba(102, 90, 63, 1)

HSL

hsl(42, 24%, 32%)

HSLA

hsla(42, 24%, 32%, 1)

HSV

hsv(42, 38%, 40%)

LAB

lab(38.72% 0.45 17.4)

LCH

lch(38.72% 17.41 88.52)

OKLAB

oklab(0.4719 0.0025 0.0433)

OKLCH

oklch(0.4719 0.0434 86.7)

XYZ

xyz(10.03, 10.50, 6.20)

CMYK

cmyk(0%, 12%, 38%, 60%)

CSS

color: #665a3f;

CSS variable

--color-665a3f: #665a3f;

SCSS

$color-665a3f: #665a3f;

JavaScript

const color = "#665a3f";

TypeScript

const color: string = "#665a3f";

React

style={{ backgroundColor: "#665a3f" }}

JSON

{ "hex": "#665a3f", "rgb": { "r": 102, "g": 90, "b": 63 }, "oklch": "oklch(0.4719 0.0434 86.7)" }

Export

Developer code

css

:root {
  --#665a3f-1: #665a3f;
}

Design systems

Nearest official tokens

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

Nearest Tailwind color

stone-600

Very different · ΔE 9.87 · #57534E

Nearest CSS named color

DimGray

Very different · ΔE 13.52 · #696969

Nearest Material color

grey-700

Very different · ΔE 12.69 · #616161

Nearest Bootstrap color

secondary

Very different · ΔE 20.57 · #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.

50fdf4e2 100f0e7d3 200ded3bc 300c9bda2 400ada083 500928568 6007a6f57 700625844 8004a4332 900342e21 9501f1a0f

Palette

Tints & shades

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

f2f1ef e6e4df d9d6cf ccc8bf bfbaaf b3ad9f a69f8f 99917f 8c836f 80765f 73684f 665a3f 5e533a 554b35 4d442f 443c2a 3b3425 332d20 2a261a 221e15 1a1710 110f0a 090805

Palette

Tints

Mixed toward white — soft backgrounds and highlights

f2f1ef e6e4df d9d6cf ccc8bf bfbaaf b3ad9f a69f8f 99917f 8c836f 80765f 73684f

Palette

Shades

Mixed toward black — depth, text, and emphasis

5e533a 554b35 4d442f 443c2a 3b3425 332d20 2a261a 221e15 1a1710 110f0a 090805

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

685d44 6a604a 6d644f 6f6755 716a5a 736d60 757065 77736a 7a7770 7c7a75 7e7d7b

Harmony

Complementary

Opposite on the color wheel for contrast

#665A3FStop 1 #3E4A65Stop 2

Harmony

Analogous

Neighbors that sit comfortably together

#65463EStop 1 #665A3FStop 2 #5D653EStop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#665A3FStop 1 #3E6559Stop 2 #593E65Stop 3

Harmony

Split complementary

Base plus two accents beside the complement

#665A3FStop 1 #3E5D65Stop 2 #463E65Stop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#3F3827Stop 1 #6F6244Stop 2 #9E8C61Stop 3 #BBAE90Stop 4 #D8D1C0Stop 5

Using this color

Where #665a3f works

#665A3F (#665a3f) sits in the brown family at about 42° hue, 24% saturation, and 32% lightness. Contrast is 6.78:1 on white and 3.1:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: stone-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, #665a3f is 3.1:1. Prefer it as a fill, border, or large heading rather than 16px copy.

Family context: Reliability, earthiness, and craft. Common in organic, coffee, and heritage brands. Common uses still include buttons, charts, and accents in the Brown 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 #6E5230#6E5230 Web Safe #666633#666633 Spectrum #776A32#776A32 Spectrum #735D1C#735D1C Spectrum #7B682D#7B682D Tailwind stone 600#57534E Spectrum #726C36#726C36 Spectrum #6F621F#6F621F Spectrum #775918#775918 Spectrum #876E40#876E40 Spectrum #76502E#76502E Spectrum #83652A#83652A