#646e72

Color #646e72

A nearly neutral, gray-leaning medium cyan.

Closest named color Dim Gray #696969 · ΔE 4.74 Nearest Tailwind class mist-500 #67787c · ΔE 4.5

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Conversions

HEX

#646e72

RGB

rgb(100, 110, 114)

HSL

hsl(197.1, 6.5%, 42%)

HSV / HSB

hsv(197.1, 12.3%, 44.7%)

CMYK

cmyk(12.3%, 3.5%, 0%, 55.3%)

LAB

lab(45.74, -2.89, -3.52)

LCH

lch(45.74, 4.55, 230.61)

OKLCH

oklch(53.1%, 0.0137, 223.82)

HWB

hwb(197.1, 39.2%, 55.3%)

Harmony colors

Complementary

#726864

Analogous

#64726f

#646e72

#646772

Triadic

#646e72

#72646e

#6e7264

Split-complementary

#646e72

#726467

#726f64

Tetradic

#646e72

#686472

#726864

#6e7264

Square

#646e72

#6f6472

#726864

#677264

Shades

Color #646e72 mixed toward black.

#535c5f

#43494c

#323739

#212526

#111213

Tints

Color #646e72 mixed toward white.

#7c878c

#969fa3

#b0b7ba

#cacfd1

#e5e7e8

Tones

Color #646e72 mixed toward gray.

#656e71

#666d70

#686d6f

#696c6d

#6a6c6c

Accessibility

Aa White text on this color

5.23:1

Aa Black text on this color

4.02:1

White text reads better on this background (5.23:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#686971 · ΔE 6

Deuteranopia

#686771 · ΔE 7.8

Tritanopia

#657070 · ΔE 2.6

Achromatopsia

#6c6c6c · ΔE 5

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

Code

CSS

background-color: #646e72;

Tailwind (arbitrary value)

bg-[#646e72]

Related colors

Sky Blue #87ceeb

Deep Sky Blue #00bfff

Light Blue #add8e6

Light Sky Blue #87cefa

Charcoal #36454f

Steel Blue #4682b4

Frequently asked questions

#646e72 (#646e72) is rgb(100, 110, 114) in RGB.

No, #646e72 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 #646e72, or check how it holds up for accessibility.

Generate a palette → Check contrast