#66686b

Color #66686b

A nearly neutral, gray-leaning medium blue.

Closest named color Dim Gray #696969 · ΔE 2.01 Nearest Tailwind class neutral-500 #737373 · ΔE 4.7

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

Conversions

HEX

#66686b

RGB

rgb(102, 104, 107)

HSL

hsl(216, 2.4%, 41%)

HSV / HSB

hsv(216, 4.7%, 42%)

CMYK

cmyk(4.7%, 2.8%, 0%, 58%)

LAB

lab(43.93, -0.14, -1.95)

LCH

lch(43.93, 1.96, 265.89)

OKLCH

oklch(51.7%, 0.0053, 258.06)

HWB

hwb(216, 40%, 58%)

Harmony colors

Complementary

#6b6966

Analogous

#666b6b

#66686b

#67666b

Triadic

#66686b

#6b6668

#686b66

Split-complementary

#66686b

#6b6766

#6b6b66

Tetradic

#66686b

#69666b

#6b6966

#686b66

Square

#66686b

#6b666b

#6b6966

#666b67

Shades

Color #66686b mixed toward black.

#555759

#444547

#333436

#222324

#111112

Tints

Color #66686b mixed toward white.

#7f8185

#989a9d

#b2b3b6

#cccdce

#e5e6e7

Tones

Color #66686b mixed toward gray.

#66686b

#67686a

#686869

Accessibility

Aa White text on this color

5.59:1

Aa Black text on this color

3.76:1

White text reads better on this background (5.59:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#67676a · ΔE 1.2

Deuteranopia

#67676a · ΔE 1.2

Tritanopia

#666a6a · ΔE 2.5

Achromatopsia

#686868 · ΔE 1.9

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

Code

CSS

background-color: #66686b;

Tailwind (arbitrary value)

bg-[#66686b]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#66686b (#66686b) is rgb(102, 104, 107) in RGB.

No, #66686b 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.

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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 #66686b, or check how it holds up for accessibility.

Generate a palette → Check contrast