#636371

Color #636371

A nearly neutral, gray-leaning medium blue.

Closest named color Dim Gray #696969 · ΔE 8.68 Nearest Tailwind class zinc-500 #71717b · ΔE 5.6

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Conversions

HEX

#636371

RGB

rgb(99, 99, 113)

HSL

hsl(240, 6.6%, 41.6%)

HSV / HSB

hsv(240, 12.4%, 44.3%)

CMYK

cmyk(12.4%, 12.4%, 0%, 55.7%)

LAB

lab(42.41, 3.08, -7.87)

LCH

lch(42.41, 8.45, 291.37)

OKLCH

oklch(50.5%, 0.022, 285.55)

HWB

hwb(240, 38.8%, 55.7%)

Harmony colors

Complementary

#717163

Analogous

#636a71

#636371

#6a6371

Triadic

#636371

#716363

#637163

Split-complementary

#636371

#716a63

#6a7163

Tetradic

#636371

#716371

#717163

#637163

Square

#636371

#71636a

#717163

#63716a

Shades

Color #636371 mixed toward black.

#53535e

#42424b

#323239

#212126

#111113

Tints

Color #636371 mixed toward white.

#7b7b8b

#9595a2

#b0b0b9

#cacad1

#e5e5e8

Tones

Color #636371 mixed toward gray.

#646470

#65656f

#67676e

#68686c

#69696b

Accessibility

Aa White text on this color

5.91:1

Aa Black text on this color

3.55:1

White text reads better on this background (5.91:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#63636e · ΔE 1.4

Deuteranopia

#63636d · ΔE 1.9

Tritanopia

#636b6b · ΔE 10

Achromatopsia

#646464 · ΔE 7.6

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

Code

CSS

background-color: #636371;

Tailwind (arbitrary value)

bg-[#636371]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#636371 (#636371) is rgb(99, 99, 113) in RGB.

No, #636371 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.

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Build something with this color

Generate a full palette from #636371, or check how it holds up for accessibility.

Generate a palette → Check contrast