#645b66

Color #645b66

A nearly neutral, gray-leaning dark purple.

Closest named color Dim Gray #696969 · ΔE 8.96 Nearest Tailwind class mauve-600 #594c5b · ΔE 5.6

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Conversions

HEX

#645b66

RGB

rgb(100, 91, 102)

HSL

hsl(289.1, 5.7%, 37.8%)

HSV / HSB

hsv(289.1, 10.8%, 40%)

CMYK

cmyk(2%, 10.8%, 0%, 60%)

LAB

lab(39.83, 5.88, -4.97)

LCH

lch(39.83, 7.7, 319.79)

OKLCH

oklch(48.4%, 0.0206, 320.12)

HWB

hwb(289.1, 35.7%, 60%)

Harmony colors

Complementary

#5d665b

Analogous

#5e5b66

#645b66

#665b62

Triadic

#645b66

#66645b

#5b6664

Split-complementary

#645b66

#62665b

#5b665e

Tetradic

#645b66

#665b5d

#5d665b

#5b6664

Square

#645b66

#665e5b

#5d665b

#5b6266

Shades

Color #645b66 mixed toward black.

#534c55

#433d44

#322d33

#211e22

#110f11

Tints

Color #645b66 mixed toward white.

#7f7482

#998f9b

#b3abb4

#ccc7cd

#e6e3e6

Tones

Color #645b66 mixed toward gray.

#635c65

#635d64

#625e63

#625f62

#615f61

Accessibility

Aa White text on this color

6.5:1

Aa Black text on this color

3.23:1

White text reads better on this background (6.5:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#606063 · ΔE 6.8

Deuteranopia

#616163 · ΔE 7.4

Tritanopia

#646161 · ΔE 7.2

Achromatopsia

#5e5e5e · ΔE 8.2

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

Code

CSS

background-color: #645b66;

Tailwind (arbitrary value)

bg-[#645b66]

Related colors

Medium Orchid #ba55d3

Dark Violet #9400d3

Dark Orchid #9932cc

Dark Magenta #8b008b

Fuchsia #ff00ff

Plum #dda0dd

Frequently asked questions

#645b66 (#645b66) is rgb(100, 91, 102) in RGB.

No, #645b66 is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

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

Try it → Accessibility

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 #645b66, or check how it holds up for accessibility.

Generate a palette → Check contrast