#645d82

Color #645d82

A muted medium blue.

Closest named color Slate Gray #708090 · ΔE 19.81 Nearest Tailwind class mauve-500 #79697b · ΔE 9

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Conversions

HEX

#645d82

RGB

rgb(100, 93, 130)

HSL

hsl(251.4, 16.6%, 43.7%)

HSV / HSB

hsv(251.4, 28.5%, 51%)

CMYK

cmyk(23.1%, 28.5%, 0%, 49%)

LAB

lab(41.45, 11.28, -19.65)

LCH

lch(41.45, 22.66, 299.86)

OKLCH

oklch(50%, 0.0587, 292.85)

HWB

hwb(251.4, 36.5%, 49%)

Harmony colors

Complementary

#7b825d

Analogous

#5d6882

#645d82

#765d82

Triadic

#645d82

#82645d

#5d8264

Split-complementary

#645d82

#82765d

#68825d

Tetradic

#645d82

#825d7b

#7b825d

#5d8264

Square

#645d82

#825d68

#7b825d

#5d8276

Shades

Color #645d82 mixed toward black.

#534d6c

#433e57

#322e41

#211f2b

#110f16

Tints

Color #645d82 mixed toward white.

#7b749b

#958faf

#b0abc3

#cac7d7

#e5e3eb

Tones

Color #645d82 mixed toward gray.

#66607f

#68637c

#6a6679

#6c6976

#6e6c73

Accessibility

Aa White text on this color

6.12:1

Aa Black text on this color

3.43:1

White text reads better on this background (6.12:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#61617a · ΔE 5

Deuteranopia

#616278 · ΔE 6.3

Tritanopia

#647472 · ΔE 21.7

Achromatopsia

#626262 · ΔE 16.3

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

Code

CSS

background-color: #645d82;

Tailwind (arbitrary value)

bg-[#645d82]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Medium Purple #9370db

Navy #000080

Lavender #e6e6fa

Frequently asked questions

#645d82 (#645d82) is rgb(100, 93, 130) in RGB.

No, #645d82 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 #645d82, or check how it holds up for accessibility.

Generate a palette → Check contrast