#666cab

Color #666cab

A muted medium blue.

Closest named color Steel Blue #4682b4 · ΔE 18.82 Nearest Tailwind class slate-500 #62748e · ΔE 7.8

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Conversions

HEX

#666cab

RGB

rgb(102, 108, 171)

HSL

hsl(234.8, 29.1%, 53.5%)

HSV / HSB

hsv(234.8, 40.4%, 67.1%)

CMYK

cmyk(40.4%, 36.8%, 0%, 32.9%)

LAB

lab(47.61, 13.96, -34.45)

LCH

lch(47.61, 37.17, 292.06)

OKLCH

oklch(55.4%, 0.0978, 278.53)

HWB

hwb(234.8, 40%, 32.9%)

Harmony colors

Complementary

#aba566

Analogous

#668eab

#666cab

#8266ab

Triadic

#666cab

#ab666c

#6cab66

Split-complementary

#666cab

#ab8266

#8eab66

Tetradic

#666cab

#a566ab

#aba566

#6cab66

Square

#666cab

#ab668e

#aba566

#66ab82

Shades

Color #666cab mixed toward black.

#515693

#404575

#303458

#20233b

#10111d

Tints

Color #666cab mixed toward white.

#7f84b9

#999dc7

#b2b5d5

#cccee3

#e5e6f1

Tones

Color #666cab mixed toward gray.

#6c71a5

#71759f

#777a9a

#7d7f94

#83848e

Accessibility

Aa White text on this color

4.89:1

Aa Black text on this color

4.3:1

White text reads better on this background (4.89:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#69699f · ΔE 3

Deuteranopia

#68689b · ΔE 3.8

Tritanopia

#669491 · ΔE 27.3

Achromatopsia

#717171 · ΔE 20.8

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

Code

CSS

background-color: #666cab;

Tailwind (arbitrary value)

bg-[#666cab]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#666cab (#666cab) is rgb(102, 108, 171) in RGB.

No, #666cab 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.

Try it →

Build something with this color

Generate a full palette from #666cab, or check how it holds up for accessibility.

Generate a palette → Check contrast