#645a87

Color #645a87

A muted medium blue.

Closest named color Steel Blue #4682b4 · ΔE 23.49 Nearest Tailwind class mauve-500 #79697b · ΔE 10.9

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Conversions

HEX

#645a87

RGB

rgb(100, 90, 135)

HSL

hsl(253.3, 20%, 44.1%)

HSV / HSB

hsv(253.3, 33.3%, 52.9%)

CMYK

cmyk(25.9%, 33.3%, 0%, 47.1%)

LAB

lab(40.85, 14.44, -23.61)

LCH

lch(40.85, 27.68, 301.45)

OKLCH

oklch(49.6%, 0.0715, 293.84)

HWB

hwb(253.3, 35.3%, 47.1%)

Harmony colors

Complementary

#7d875a

Analogous

#5a6687

#645a87

#7a5a87

Triadic

#645a87

#87645a

#5a8764

Split-complementary

#645a87

#877a5a

#66875a

Tetradic

#645a87

#875a7d

#7d875a

#5a8764

Square

#645a87

#875a66

#7d875a

#5a877a

Shades

Color #645a87 mixed toward black.

#534b70

#433c5a

#322d43

#211e2d

#110f16

Tints

Color #645a87 mixed toward white.

#7b70a0

#958db3

#b0a9c6

#cac6d9

#e5e2ec

Tones

Color #645a87 mixed toward gray.

#665e83

#68617f

#6a657c

#6c6978

#6e6d74

Accessibility

Aa White text on this color

6.26:1

Aa Black text on this color

3.35:1

White text reads better on this background (6.26:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#60607e · ΔE 5.5

Deuteranopia

#60617c · ΔE 6.6

Tritanopia

#647674 · ΔE 23.6

Achromatopsia

#606060 · ΔE 18.4

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

Code

CSS

background-color: #645a87;

Tailwind (arbitrary value)

bg-[#645a87]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Medium Purple #9370db

Navy #000080

Lavender #e6e6fa

Frequently asked questions

#645a87 (#645a87) is rgb(100, 90, 135) in RGB.

No, #645a87 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 #645a87, or check how it holds up for accessibility.

Generate a palette → Check contrast