#664e79

Color #664e79

A muted dark purple.

Closest named color Dark Slate Blue #483d8b · ΔE 23.42 Nearest Tailwind class mauve-600 #594c5b · ΔE 10.1

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Conversions

HEX

#664e79

RGB

rgb(102, 78, 121)

HSL

hsl(273.5, 21.6%, 39%)

HSV / HSB

hsv(273.5, 35.5%, 47.5%)

CMYK

cmyk(15.7%, 35.5%, 0%, 52.5%)

LAB

lab(37.21, 19.03, -20.67)

LCH

lch(37.21, 28.1, 312.63)

OKLCH

oklch(46.6%, 0.0735, 309.32)

HWB

hwb(273.5, 30.6%, 52.5%)

Harmony colors

Complementary

#61794e

Analogous

#504e79

#664e79

#794e76

Triadic

#664e79

#79664e

#4e7966

Split-complementary

#664e79

#76794e

#4e7950

Tetradic

#664e79

#794e61

#61794e

#4e7966

Square

#664e79

#79504e

#61794e

#4e7679

Shades

Color #664e79 mixed toward black.

#554165

#443451

#33273c

#221a28

#110d14

Tints

Color #664e79 mixed toward white.

#816298

#9a81ae

#b3a0c2

#ccc0d6

#e6dfeb

Tones

Color #664e79 mixed toward gray.

#665275

#655572

#65596e

#645c6b

#646067

Accessibility

Aa White text on this color

7.17:1

Aa Black text on this color

2.93:1

White text reads better on this background (7.17:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#5d5c70 · ΔE 11

Deuteranopia

#5e606e · ΔE 14.2

Tritanopia

#656967 · ΔE 21.8

Achromatopsia

#585858 · ΔE 19.3

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

Code

CSS

background-color: #664e79;

Tailwind (arbitrary value)

bg-[#664e79]

Related colors

Indigo #4b0082

Blue Violet #8a2be2

Rebecca Purple #663399

Dark Orchid #9932cc

Dark Violet #9400d3

Medium Purple #9370db

Frequently asked questions

#664e79 (#664e79) is rgb(102, 78, 121) in RGB.

No, #664e79 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

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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 #664e79, or check how it holds up for accessibility.

Generate a palette → Check contrast