#666d64

Color #666d64

A nearly neutral, gray-leaning medium green.

Closest named color Dim Gray #696969 · ΔE 6.17 Nearest Tailwind class neutral-500 #737373 · ΔE 7.4

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

Conversions

HEX

#666d64

RGB

rgb(102, 109, 100)

HSL

hsl(106.7, 4.3%, 41%)

HSV / HSB

hsv(106.7, 8.3%, 42.7%)

CMYK

cmyk(6.4%, 0%, 8.3%, 57.3%)

LAB

lab(45.2, -4.53, 4.11)

LCH

lch(45.2, 6.12, 137.78)

OKLCH

oklch(52.6%, 0.0162, 138.75)

HWB

hwb(106.7, 39.2%, 57.3%)

Harmony colors

Complementary

#6b646d

Analogous

#6b6d64

#666d64

#646d67

Triadic

#666d64

#64666d

#6d6466

Split-complementary

#666d64

#67646d

#6d646b

Tetradic

#666d64

#646d6b

#6b646d

#6d6466

Square

#666d64

#646b6d

#6b646d

#6d6764

Shades

Color #666d64 mixed toward black.

#555b53

#444943

#333732

#222421

#111211

Tints

Color #666d64 mixed toward white.

#7f877c

#989f96

#b2b7b1

#cccfcb

#e5e7e5

Tones

Color #666d64 mixed toward gray.

#666c65

#676c66

#676b66

#686a67

#686968

Accessibility

Aa White text on this color

5.33:1

Aa Black text on this color

3.94:1

White text reads better on this background (5.33:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#696966 · ΔE 5.3

Deuteranopia

#696867 · ΔE 6.8

Tritanopia

#666868 · ΔE 6.1

Achromatopsia

#6b6b6b · ΔE 6.7

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

Code

CSS

background-color: #666d64;

Tailwind (arbitrary value)

bg-[#666d64]

Related colors

Forest Green #228b22

Mint Green #98ff98

Dark Green #006400

Dark Sea Green #8fbc8f

Green #008000

Honeydew #f0fff0

Frequently asked questions

#666d64 (#666d64) is rgb(102, 109, 100) in RGB.

No, #666d64 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.

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 #666d64, or check how it holds up for accessibility.

Generate a palette → Check contrast