#646c8d

Color #646c8d

A muted medium blue.

Closest named color Slate Gray #708090 · ΔE 12.97 Nearest Tailwind class slate-500 #62748e · ΔE 5.9

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

Conversions

HEX

#646c8d

RGB

rgb(100, 108, 141)

HSL

hsl(228.3, 17%, 47.3%)

HSV / HSB

hsv(228.3, 29.1%, 55.3%)

CMYK

cmyk(29.1%, 23.4%, 0%, 44.7%)

LAB

lab(46.12, 4.97, -19.08)

LCH

lch(46.12, 19.72, 284.6)

OKLCH

oklch(53.7%, 0.0527, 273.92)

HWB

hwb(228.3, 39.2%, 44.7%)

Harmony colors

Complementary

#8d8564

Analogous

#64818d

#646c8d

#71648d

Triadic

#646c8d

#8d646c

#6c8d64

Split-complementary

#646c8d

#8d7164

#818d64

Tetradic

#646c8d

#85648d

#8d8564

#6c8d64

Square

#646c8d

#8d6481

#8d8564

#648d71

Shades

Color #646c8d mixed toward black.

#535a76

#43485e

#323647

#21242f

#111218

Tints

Color #646c8d mixed toward white.

#7c83a2

#969cb5

#b0b5c7

#cbceda

#e5e6ec

Tones

Color #646c8d mixed toward gray.

#686e8a

#6b7086

#6e7283

#72747f

#75777c

Accessibility

Aa White text on this color

5.16:1

Aa Black text on this color

4.07:1

White text reads better on this background (5.16:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#686886 · ΔE 3.4

Deuteranopia

#676684 · ΔE 4

Tritanopia

#64807f · ΔE 19.6

Achromatopsia

#6d6d6d · ΔE 14

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

Code

CSS

background-color: #646c8d;

Tailwind (arbitrary value)

bg-[#646c8d]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Frequently asked questions

#646c8d (#646c8d) is rgb(100, 108, 141) in RGB.

No, #646c8d 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.

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 #646c8d, or check how it holds up for accessibility.

Generate a palette → Check contrast