#666d68

Color #666d68

A nearly neutral, gray-leaning medium green.

Closest named color Dim Gray #696969 · ΔE 4.26 Nearest Tailwind class neutral-500 #737373 · ΔE 6

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Conversions

HEX

#666d68

RGB

rgb(102, 109, 104)

HSL

hsl(137.1, 3.3%, 41.4%)

HSV / HSB

hsv(137.1, 6.4%, 42.7%)

CMYK

cmyk(6.4%, 0%, 4.6%, 57.3%)

LAB

lab(45.31, -3.72, 1.87)

LCH

lch(45.31, 4.16, 153.31)

OKLCH

oklch(52.7%, 0.0115, 154.77)

HWB

hwb(137.1, 40%, 57.3%)

Harmony colors

Complementary

#6d666b

Analogous

#686d66

#666d68

#666d6c

Triadic

#666d68

#68666d

#6d6866

Split-complementary

#666d68

#6c666d

#6d6668

Tetradic

#666d68

#666b6d

#6d666b

#6d6866

Square

#666d68

#66686d

#6d666b

#6d6c66

Shades

Color #666d68 mixed toward black.

#555b57

#444945

#333734

#222423

#111211

Tints

Color #666d68 mixed toward white.

#7e8781

#989f9a

#b2b7b3

#cccfcc

#e5e7e6

Tones

Color #666d68 mixed toward gray.

#676c68

#676c69

#686b69

#696a69

Accessibility

Aa White text on this color

5.31:1

Aa Black text on this color

3.95:1

White text reads better on this background (5.31:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#696969 · ΔE 5.3

Deuteranopia

#69686a · ΔE 6.7

Tritanopia

#666a6a · ΔE 3.6

Achromatopsia

#6b6b6b · ΔE 5.2

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

Code

CSS

background-color: #666d68;

Tailwind (arbitrary value)

bg-[#666d68]

Related colors

Sea Green #2e8b57

Medium Sea Green #3cb371

Spring Green #00ff7f

Mint Cream #f5fffa

Forest Green #228b22

Mint Green #98ff98

Frequently asked questions

#666d68 (#666d68) is rgb(102, 109, 104) in RGB.

No, #666d68 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 #666d68, or check how it holds up for accessibility.

Generate a palette → Check contrast