#643a35

Color #643a35

A muted dark red.

Closest named color Dim Gray #696969 · ΔE 25.87 Nearest Tailwind class red-900 #82181a · ΔE 11.8

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Conversions

HEX

#643a35

RGB

rgb(100, 58, 53)

HSL

hsl(6.4, 30.7%, 30%)

HSV / HSB

hsv(6.4, 47%, 39.2%)

CMYK

cmyk(0%, 42%, 47%, 60.8%)

LAB

lab(29.4, 17.94, 11.05)

LCH

lch(29.4, 21.07, 31.63)

OKLCH

oklch(39.8%, 0.0607, 27.37)

HWB

hwb(6.4, 20.8%, 60.8%)

Harmony colors

Complementary

#355f64

Analogous

#643547

#643a35

#645235

Triadic

#643a35

#35643a

#3a3564

Split-complementary

#643a35

#356452

#354764

Tetradic

#643a35

#5f6435

#355f64

#3a3564

Square

#643a35

#476435

#355f64

#523564

Shades

Color #643a35 mixed toward black.

#53302c

#432723

#321d1b

#211312

#110a09

Tints

Color #643a35 mixed toward white.

#8b514a

#ad6b63

#c1908a

#d6b5b1

#eadad8

Tones

Color #643a35 mixed toward gray.

#603d39

#5c403d

#584341

#544645

#504949

Accessibility

Aa White text on this color

9.55:1

Aa Black text on this color

2.2:1

White text reads better on this background (9.55:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#555536 · ΔE 26.1

Deuteranopia

#575a37 · ΔE 28

Tritanopia

#623737 · ΔE 2.4

Achromatopsia

#454545 · ΔE 17.4

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #643a35;

Tailwind (arbitrary value)

bg-[#643a35]

Related colors

Salmon #fa8072

Misty Rose #ffe4e1

Tomato #ff6347

Red #ff0000

Maroon #800000

Black #000000

Frequently asked questions

#643a35 (#643a35) is rgb(100, 58, 53) in RGB.

No, #643a35 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #643a35, or check how it holds up for accessibility.

Generate a palette → Check contrast