#645ebf

Color #645ebf

A moderately saturated medium blue.

Closest named color Slate Blue #6a5acd · ΔE 10.86 Nearest Tailwind class indigo-500 #615fff · ΔE 8.7

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

Conversions

HEX

#645ebf

RGB

rgb(100, 94, 191)

HSL

hsl(243.7, 43.1%, 55.9%)

HSV / HSB

hsv(243.7, 50.8%, 74.9%)

CMYK

cmyk(47.6%, 50.8%, 0%, 25.1%)

LAB

lab(44.91, 28.07, -50.4)

LCH

lch(44.91, 57.69, 299.12)

OKLCH

oklch(53.6%, 0.1472, 283.04)

HWB

hwb(243.7, 36.9%, 25.1%)

Harmony colors

Complementary

#b9bf5e

Analogous

#5e89bf

#645ebf

#955ebf

Triadic

#645ebf

#bf645e

#5ebf64

Split-complementary

#645ebf

#bf955e

#89bf5e

Tetradic

#645ebf

#bf5eb9

#b9bf5e

#5ebf64

Square

#645ebf

#bf5e89

#b9bf5e

#5ebf95

Shades

Color #645ebf mixed toward black.

#4a44aa

#3b3688

#2c2966

#1e1b44

#0f0e22

Tints

Color #645ebf mixed toward white.

#7e79ca

#9894d4

#b2afdf

#cbc9ea

#e5e4f4

Tones

Color #645ebf mixed toward gray.

#6b66b7

#726eaf

#7976a7

#807e9f

#878697

Accessibility

Aa White text on this color

5.39:1

Aa Black text on this color

3.9:1

White text reads better on this background (5.39:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6161ae · ΔE 3.2

Deuteranopia

#6262a9 · ΔE 4.2

Tritanopia

#649e9b · ΔE 33.3

Achromatopsia

#6a6a6a · ΔE 25.3

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

Code

CSS

background-color: #645ebf;

Tailwind (arbitrary value)

bg-[#645ebf]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#645ebf (#645ebf) is rgb(100, 94, 191) in RGB.

No, #645ebf 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #645ebf, or check how it holds up for accessibility.

Generate a palette → Check contrast