#666c63

Color #666c63

A nearly neutral, gray-leaning medium green.

Closest named color Dim Gray #696969 · ΔE 5.95 Nearest Tailwind class neutral-500 #737373 · ΔE 7.3

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

Conversions

HEX

#666c63

RGB

rgb(102, 108, 99)

HSL

hsl(100, 4.3%, 40.6%)

HSV / HSB

hsv(100, 8.3%, 42.4%)

CMYK

cmyk(5.6%, 0%, 8.3%, 57.6%)

LAB

lab(44.87, -4.15, 4.24)

LCH

lch(44.87, 5.93, 134.39)

OKLCH

oklch(52.3%, 0.0157, 135)

HWB

hwb(100, 38.8%, 57.6%)

Harmony colors

Complementary

#69636c

Analogous

#6a6c63

#666c63

#636c65

Triadic

#666c63

#63666c

#6c6366

Split-complementary

#666c63

#65636c

#6c636a

Tetradic

#666c63

#636c69

#69636c

#6c6366

Square

#666c63

#636a6c

#69636c

#6c6563

Shades

Color #666c63 mixed toward black.

#555a53

#444842

#333632

#222421

#111211

Tints

Color #666c63 mixed toward white.

#7f867b

#999e96

#b2b7b0

#cccfca

#e5e7e5

Tones

Color #666c63 mixed toward gray.

#666b64

#676a65

#676966

#676867

Accessibility

Aa White text on this color

5.4:1

Aa Black text on this color

3.89:1

White text reads better on this background (5.4:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#696965 · ΔE 4.5

Deuteranopia

#686866 · ΔE 5.5

Tritanopia

#666767 · ΔE 6.2

Achromatopsia

#6a6a6a · ΔE 6.4

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

Code

CSS

background-color: #666c63;

Tailwind (arbitrary value)

bg-[#666c63]

Related colors

Lawn Green #7cfc00

Chartreuse #7fff00

Green Yellow #adff2f

Dark Olive Green #556b2f

Forest Green #228b22

Mint Green #98ff98

Frequently asked questions

#666c63 (#666c63) is rgb(102, 108, 99) in RGB.

No, #666c63 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 #666c63, or check how it holds up for accessibility.

Generate a palette → Check contrast