#646a6f

Color #646a6f

A nearly neutral, gray-leaning medium blue.

Closest named color Dim Gray #696969 · ΔE 3.79 Nearest Tailwind class neutral-500 #737373 · ΔE 5.3

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

Conversions

HEX

#646a6f

RGB

rgb(100, 106, 111)

HSL

hsl(207.3, 5.2%, 41.4%)

HSV / HSB

hsv(207.3, 9.9%, 43.5%)

CMYK

cmyk(9.9%, 4.5%, 0%, 56.5%)

LAB

lab(44.47, -1.2, -3.59)

LCH

lch(44.47, 3.79, 251.52)

OKLCH

oklch(52.1%, 0.0108, 242.96)

HWB

hwb(207.3, 39.2%, 56.5%)

Harmony colors

Complementary

#6f6964

Analogous

#646f6f

#646a6f

#64656f

Triadic

#646a6f

#6f646a

#6a6f64

Split-complementary

#646a6f

#6f6465

#6f6f64

Tetradic

#646a6f

#69646f

#6f6964

#6a6f64

Square

#646a6f

#6f646f

#6f6964

#656f64

Shades

Color #646a6f mixed toward black.

#53585d

#43474a

#323538

#212325

#111213

Tints

Color #646a6f mixed toward white.

#7c8389

#969ca1

#b0b5b8

#cbcdd0

#e5e6e7

Tones

Color #646a6f mixed toward gray.

#656a6e

#666a6d

#676a6c

#686a6b

#696a6a

Accessibility

Aa White text on this color

5.48:1

Aa Black text on this color

3.83:1

White text reads better on this background (5.48:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#67676e · ΔE 3.9

Deuteranopia

#66666e · ΔE 4.3

Tritanopia

#646d6d · ΔE 3.8

Achromatopsia

#696969 · ΔE 3.7

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

Code

CSS

background-color: #646a6f;

Tailwind (arbitrary value)

bg-[#646a6f]

Related colors

Steel Blue #4682b4

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Light Slate Gray #778899

Slate Gray #708090

Charcoal #36454f

Frequently asked questions

#646a6f (#646a6f) is rgb(100, 106, 111) in RGB.

No, #646a6f 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.

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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 #646a6f, or check how it holds up for accessibility.

Generate a palette → Check contrast