#666366

Color #666366

A nearly neutral, gray-leaning dark magenta.

Closest named color Dim Gray #696969 · ΔE 3.04 Nearest Tailwind class neutral-500 #737373 · ΔE 6.5

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Conversions

HEX

#666366

RGB

rgb(102, 99, 102)

HSL

hsl(300, 1.5%, 39.4%)

HSV / HSB

hsv(300, 2.9%, 40%)

CMYK

cmyk(0%, 2.9%, 0%, 60%)

LAB

lab(42.32, 1.8, -1.28)

LCH

lch(42.32, 2.21, 324.58)

OKLCH

oklch(50.3%, 0.006, 325.24)

HWB

hwb(300, 38.8%, 60%)

Harmony colors

Complementary

#636663

Analogous

#646366

#666366

#666364

Triadic

#666366

#666663

#636666

Split-complementary

#666366

#646663

#636664

Tetradic

#666366

#666363

#636663

#636666

Square

#666366

#666463

#636663

#636466

Shades

Color #666366 mixed toward black.

#555255

#444244

#333133

#222122

#111011

Tints

Color #666366 mixed toward white.

#807c80

#9a969a

#b3b1b3

#cccbcc

#e6e5e6

Tones

Color #666366 mixed toward gray.

#666366

#656365

#656465

Accessibility

Aa White text on this color

5.93:1

Aa Black text on this color

3.54:1

White text reads better on this background (5.93:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#656565 · ΔE 2.8

Deuteranopia

#656565 · ΔE 2.8

Tritanopia

#666565 · ΔE 2.4

Achromatopsia

#646464 · ΔE 2.8

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

Code

CSS

background-color: #666366;

Tailwind (arbitrary value)

bg-[#666366]

Related colors

Dark Magenta #8b008b

Fuchsia #ff00ff

Plum #dda0dd

Purple #800080

Thistle #d8bfd8

Violet #ee82ee

Frequently asked questions

#666366 (#666366) is rgb(102, 99, 102) in RGB.

No, #666366 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 #666366, or check how it holds up for accessibility.

Generate a palette → Check contrast