#63677e

Color #63677e

A nearly neutral, gray-leaning medium blue.

Closest named color Slate Gray #708090 · ΔE 10.97 Nearest Tailwind class gray-500 #6a7282 · ΔE 5.7

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Conversions

HEX

#63677e

RGB

rgb(99, 103, 126)

HSL

hsl(231.1, 12%, 44.1%)

HSV / HSB

hsv(231.1, 21.4%, 49.4%)

CMYK

cmyk(21.4%, 18.3%, 0%, 50.6%)

LAB

lab(44.03, 3.79, -13.3)

LCH

lch(44.03, 13.83, 285.91)

OKLCH

oklch(51.9%, 0.0366, 277.38)

HWB

hwb(231.1, 38.8%, 50.6%)

Harmony colors

Complementary

#7e7a63

Analogous

#63747e

#63677e

#6c637e

Triadic

#63677e

#7e6367

#677e63

Split-complementary

#63677e

#7e6c63

#747e63

Tetradic

#63677e

#7a637e

#7e7a63

#677e63

Square

#63677e

#7e6374

#7e7a63

#637e6c

Shades

Color #63677e mixed toward black.

#525669

#424554

#31333f

#21222a

#101115

Tints

Color #63677e mixed toward white.

#7a7e96

#9598ab

#afb2c0

#cacbd5

#e4e5ea

Tones

Color #63677e mixed toward gray.

#65697c

#676a79

#6a6c77

#6c6d75

#6e6f73

Accessibility

Aa White text on this color

5.57:1

Aa Black text on this color

3.77:1

White text reads better on this background (5.57:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#656579 · ΔE 2.1

Deuteranopia

#656478 · ΔE 2.5

Tritanopia

#637574 · ΔE 15.5

Achromatopsia

#686868 · ΔE 10.9

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

Code

CSS

background-color: #63677e;

Tailwind (arbitrary value)

bg-[#63677e]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#63677e (#63677e) is rgb(99, 103, 126) in RGB.

No, #63677e 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 #63677e, or check how it holds up for accessibility.

Generate a palette → Check contrast