#666d7b

Color #666d7b

A nearly neutral, gray-leaning medium blue.

Closest named color Slate Gray #708090 · ΔE 7.67 Nearest Tailwind class gray-500 #6a7282 · ΔE 2.1

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

Conversions

HEX

#666d7b

RGB

rgb(102, 109, 123)

HSL

hsl(220, 9.3%, 44.1%)

HSV / HSB

hsv(220, 17.1%, 48.2%)

CMYK

cmyk(17.1%, 11.4%, 0%, 51.8%)

LAB

lab(45.9, 0.51, -8.66)

LCH

lch(45.9, 8.68, 273.37)

OKLCH

oklch(53.4%, 0.0235, 264.39)

HWB

hwb(220, 40%, 51.8%)

Harmony colors

Complementary

#7b7466

Analogous

#66777b

#666d7b

#69667b

Triadic

#666d7b

#7b666d

#6d7b66

Split-complementary

#666d7b

#7b6966

#777b66

Tetradic

#666d7b

#74667b

#7b7466

#6d7b66

Square

#666d7b

#7b6677

#7b7466

#667b69

Shades

Color #666d7b mixed toward black.

#555b66

#444952

#33363d

#222429

#111214

Tints

Color #666d7b mixed toward white.

#7d8593

#979da9

#b1b6be

#cbced4

#e5e7e9

Tones

Color #666d7b mixed toward gray.

#686e79

#696e77

#6b6f76

#6d6f74

#6f7072

Accessibility

Aa White text on this color

5.2:1

Aa Black text on this color

4.04:1

White text reads better on this background (5.2:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#696978 · ΔE 4

Deuteranopia

#696877 · ΔE 4.6

Tritanopia

#667575 · ΔE 9.6

Achromatopsia

#6d6d6d · ΔE 7.3

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

Code

CSS

background-color: #666d7b;

Tailwind (arbitrary value)

bg-[#666d7b]

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

#666d7b (#666d7b) is rgb(102, 109, 123) in RGB.

No, #666d7b 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.

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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 #666d7b, or check how it holds up for accessibility.

Generate a palette → Check contrast