#666191

Color #666191

A muted medium blue.

Closest named color Steel Blue #4682b4 · ΔE 20.75 Nearest Tailwind class slate-500 #62748e · ΔE 11

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

Conversions

HEX

#666191

RGB

rgb(102, 97, 145)

HSL

hsl(246.3, 19.8%, 47.5%)

HSV / HSB

hsv(246.3, 33.1%, 56.9%)

CMYK

cmyk(29.7%, 33.1%, 0%, 43.1%)

LAB

lab(43.39, 13.4, -25.68)

LCH

lch(43.39, 28.97, 297.56)

OKLCH

oklch(51.7%, 0.0751, 288.24)

HWB

hwb(246.3, 38%, 43.1%)

Harmony colors

Complementary

#8c9161

Analogous

#617491

#666191

#7e6191

Triadic

#666191

#916661

#619166

Split-complementary

#666191

#917e61

#749161

Tetradic

#666191

#91618c

#8c9161

#619166

Square

#666191

#916174

#8c9161

#61917e

Shades

Color #666191 mixed toward black.

#555179

#444161

#333149

#222030

#111018

Tints

Color #666191 mixed toward white.

#7e79a6

#9894b7

#b2afc9

#cbcadb

#e5e4ed

Tones

Color #666191 mixed toward gray.

#69658d

#6c6989

#706d85

#737181

#76757d

Accessibility

Aa White text on this color

5.7:1

Aa Black text on this color

3.68:1

White text reads better on this background (5.7:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#646487 · ΔE 3.8

Deuteranopia

#646585 · ΔE 4.8

Tritanopia

#667f7d · ΔE 24.5

Achromatopsia

#666666 · ΔE 18.6

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

Code

CSS

background-color: #666191;

Tailwind (arbitrary value)

bg-[#666191]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#666191 (#666191) is rgb(102, 97, 145) in RGB.

No, #666191 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 #666191, or check how it holds up for accessibility.

Generate a palette → Check contrast