#666b76

Color #666b76

A nearly neutral, gray-leaning medium blue.

Closest named color Dim Gray #696969 · ΔE 6.83 Nearest Tailwind class gray-500 #6a7282 · ΔE 3.5

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Conversions

HEX

#666b76

RGB

rgb(102, 107, 118)

HSL

hsl(221.3, 7.3%, 43.1%)

HSV / HSB

hsv(221.3, 13.6%, 46.3%)

CMYK

cmyk(13.6%, 9.3%, 0%, 53.7%)

LAB

lab(45.15, 0.53, -6.77)

LCH

lch(45.15, 6.79, 274.48)

OKLCH

oklch(52.7%, 0.0183, 266.25)

HWB

hwb(221.3, 40%, 53.7%)

Harmony colors

Complementary

#767166

Analogous

#667376

#666b76

#696676

Triadic

#666b76

#76666b

#6b7666

Split-complementary

#666b76

#766966

#737666

Tetradic

#666b76

#716676

#767166

#6b7666

Square

#666b76

#766673

#767166

#667669

Shades

Color #666b76 mixed toward black.

#555962

#44474f

#33353b

#222427

#111214

Tints

Color #666b76 mixed toward white.

#7d838f

#979ca5

#b1b4bc

#cbcdd2

#e5e6e9

Tones

Color #666b76 mixed toward gray.

#676b75

#696c73

#6a6c72

#6b6d71

#6d6d6f

Accessibility

Aa White text on this color

5.34:1

Aa Black text on this color

3.93:1

White text reads better on this background (5.34:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#686873 · ΔE 2.8

Deuteranopia

#686873 · ΔE 2.8

Tritanopia

#667171 · ΔE 7.8

Achromatopsia

#6b6b6b · ΔE 5.9

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

Code

CSS

background-color: #666b76;

Tailwind (arbitrary value)

bg-[#666b76]

Related colors

Cornflower Blue #6495ed

Royal Blue #4169e1

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#666b76 (#666b76) is rgb(102, 107, 118) in RGB.

No, #666b76 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 #666b76, or check how it holds up for accessibility.

Generate a palette → Check contrast