#663366

Color #663366

Web safe

A muted dark magenta.

Closest named color Dark Slate Blue #483d8b · ΔE 22.43 Nearest Tailwind class fuchsia-900 #721378 · ΔE 7.9

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

Conversions

HEX

#663366

RGB

rgb(102, 51, 102)

HSL

hsl(300, 33.3%, 30%)

HSV / HSB

hsv(300, 50%, 40%)

CMYK

cmyk(0%, 50%, 0%, 60%)

LAB

lab(29.79, 31.03, -20.23)

LCH

lch(29.79, 37.04, 326.9)

OKLCH

oklch(40.8%, 0.1025, 327.27)

HWB

hwb(300, 20%, 60%)

Harmony colors

Complementary

#336633

Analogous

#4d3366

#663366

#66334d

Triadic

#663366

#666633

#336666

Split-complementary

#663366

#4d6633

#33664d

Tetradic

#663366

#663333

#336633

#336666

Square

#663366

#664d33

#336633

#334d66

Shades

Color #663366 mixed toward black.

#552b55

#442244

#331a33

#221122

#110911

Tints

Color #663366 mixed toward white.

#8e478e

#b060b0

#c388c3

#d7b0d7

#ebd7eb

Tones

Color #663366 mixed toward gray.

#623762

#5d3c5d

#594059

#554455

#514851

Accessibility

Aa White text on this color

9.42:1

Aa Black text on this color

2.23:1

White text reads better on this background (9.42:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#54545d · ΔE 19.7

Deuteranopia

#575a5a · ΔE 19.9

Tritanopia

#645453 · ΔE 20

Achromatopsia

#464646 · ΔE 22.6

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

Code

CSS

background-color: #663366;

Tailwind (arbitrary value)

bg-[#663366]

Related colors

Dark Magenta #8b008b

Fuchsia #ff00ff

Plum #dda0dd

Purple #800080

Thistle #d8bfd8

Violet #ee82ee

Frequently asked questions

#663366 (#663366) is rgb(102, 51, 102) in RGB.

Yes, #663366 is one of the 216 web-safe colors — every channel is 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

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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 #663366, or check how it holds up for accessibility.

Generate a palette → Check contrast