#646771

Color #646771

A nearly neutral, gray-leaning medium blue.

Closest named color Dim Gray #696969 · ΔE 6.14 Nearest Tailwind class zinc-500 #71717b · ΔE 4.4

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

Conversions

HEX

#646771

RGB

rgb(100, 103, 113)

HSL

hsl(226.2, 6.1%, 41.8%)

HSV / HSB

hsv(226.2, 11.5%, 44.3%)

CMYK

cmyk(11.5%, 8.8%, 0%, 55.7%)

LAB

lab(43.66, 1.04, -6)

LCH

lch(43.66, 6.09, 279.83)

OKLCH

oklch(51.5%, 0.0161, 272.49)

HWB

hwb(226.2, 39.2%, 55.7%)

Harmony colors

Complementary

#716e64

Analogous

#646e71

#646771

#686471

Triadic

#646771

#716467

#677164

Split-complementary

#646771

#716864

#6e7164

Tetradic

#646771

#6e6471

#716e64

#677164

Square

#646771

#71646e

#716e64

#647168

Shades

Color #646771 mixed toward black.

#53565e

#43454b

#323439

#212226

#111113

Tints

Color #646771 mixed toward white.

#7c7f8b

#9699a2

#b0b2b9

#cbccd1

#e5e5e8

Tones

Color #646771 mixed toward gray.

#656870

#66686f

#67696e

#68696d

#6a6a6c

Accessibility

Aa White text on this color

5.64:1

Aa Black text on this color

3.72:1

White text reads better on this background (5.64:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#65656f · ΔE 1.7

Deuteranopia

#65656e · ΔE 1.7

Tritanopia

#646d6c · ΔE 7.9

Achromatopsia

#676767 · ΔE 5.4

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

Code

CSS

background-color: #646771;

Tailwind (arbitrary value)

bg-[#646771]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#646771 (#646771) is rgb(100, 103, 113) in RGB.

No, #646771 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 #646771, or check how it holds up for accessibility.

Generate a palette → Check contrast