#645b6d

Color #645b6d

A nearly neutral, gray-leaning dark purple.

Closest named color Dim Gray #696969 · ΔE 12.39 Nearest Tailwind class mauve-600 #594c5b · ΔE 5.5

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#645b6d

RGB

rgb(100, 91, 109)

HSL

hsl(270, 9%, 39.2%)

HSV / HSB

hsv(270, 16.5%, 42.7%)

CMYK

cmyk(8.3%, 16.5%, 0%, 57.3%)

LAB

lab(40.07, 7.43, -8.92)

LCH

lch(40.07, 11.61, 309.79)

OKLCH

oklch(48.6%, 0.0304, 307.78)

HWB

hwb(270, 35.7%, 57.3%)

Harmony colors

Complementary

#646d5b

Analogous

#5b5b6d

#645b6d

#6d5b6d

Triadic

#645b6d

#6d645b

#5b6d64

Split-complementary

#645b6d

#6d6d5b

#5b6d5b

Tetradic

#645b6d

#6d5b64

#646d5b

#5b6d64

Square

#645b6d

#6d5b5b

#646d5b

#5b6d6d

Shades

Color #645b6d mixed toward black.

#534c5b

#433d49

#322d36

#211e24

#110f12

Tints

Color #645b6d mixed toward white.

#7e7289

#988ea1

#b1abb8

#cbc7d0

#e5e3e7

Tones

Color #645b6d mixed toward gray.

#645c6b

#645e6a

#645f68

#646167

#646265

Accessibility

Aa White text on this color

6.44:1

Aa Black text on this color

3.26:1

White text reads better on this background (6.44:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#606069 · ΔE 6.5

Deuteranopia

#616168 · ΔE 7.4

Tritanopia

#646665 · ΔE 12.4

Achromatopsia

#5e5e5e · ΔE 10.8

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

Code

CSS

background-color: #645b6d;

Tailwind (arbitrary value)

bg-[#645b6d]

Related colors

Rebecca Purple #663399

Blue Violet #8a2be2

Indigo #4b0082

Dark Orchid #9932cc

Medium Purple #9370db

Dark Violet #9400d3

Frequently asked questions

#645b6d (#645b6d) is rgb(100, 91, 109) in RGB.

No, #645b6d 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 #645b6d, or check how it holds up for accessibility.

Generate a palette → Check contrast