#666a63

Color #666a63

A nearly neutral, gray-leaning medium green.

Closest named color Dim Gray #696969 · ΔE 4.52 Nearest Tailwind class neutral-500 #737373 · ΔE 6.4

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

Conversions

HEX

#666a63

RGB

rgb(102, 106, 99)

HSL

hsl(94.3, 3.4%, 40.2%)

HSV / HSB

hsv(94.3, 6.6%, 41.6%)

CMYK

cmyk(3.8%, 0%, 6.6%, 58.4%)

LAB

lab(44.28, -2.98, 3.39)

LCH

lch(44.28, 4.51, 131.32)

OKLCH

oklch(51.9%, 0.0119, 131.59)

HWB

hwb(94.3, 38.8%, 58.4%)

Harmony colors

Complementary

#67636a

Analogous

#696a63

#666a63

#636a64

Triadic

#666a63

#63666a

#6a6366

Split-complementary

#666a63

#64636a

#6a6369

Tetradic

#666a63

#636a67

#67636a

#6a6366

Square

#666a63

#63696a

#67636a

#6a6463

Shades

Color #666a63 mixed toward black.

#555853

#444742

#333532

#222321

#111211

Tints

Color #666a63 mixed toward white.

#7f847c

#999d96

#b2b5b0

#ccceca

#e5e6e5

Tones

Color #666a63 mixed toward gray.

#666964

#666865

#666766

Accessibility

Aa White text on this color

5.52:1

Aa Black text on this color

3.81:1

White text reads better on this background (5.52:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#686865 · ΔE 3.4

Deuteranopia

#686765 · ΔE 4.4

Tritanopia

#666666 · ΔE 5.1

Achromatopsia

#696969 · ΔE 5

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

Code

CSS

background-color: #666a63;

Tailwind (arbitrary value)

bg-[#666a63]

Related colors

Lawn Green #7cfc00

Chartreuse #7fff00

Green Yellow #adff2f

Dark Olive Green #556b2f

Yellow Green #9acd32

Olive Drab #6b8e23

Frequently asked questions

#666a63 (#666a63) is rgb(102, 106, 99) in RGB.

No, #666a63 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.

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 #666a63, or check how it holds up for accessibility.

Generate a palette → Check contrast