#664e47

Color #664e47

A muted dark red.

Closest named color Dim Gray #696969 · ΔE 14.98 Nearest Tailwind class taupe-600 #5b4f4b · ΔE 5.3

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

Conversions

HEX

#664e47

RGB

rgb(102, 78, 71)

HSL

hsl(13.5, 17.9%, 33.9%)

HSV / HSB

hsv(13.5, 30.4%, 40%)

CMYK

cmyk(0%, 23.5%, 30.4%, 60%)

LAB

lab(35.46, 8.94, 8.02)

LCH

lch(35.46, 12.01, 41.9)

OKLCH

oklch(44.7%, 0.0345, 36.87)

HWB

hwb(13.5, 27.8%, 60%)

Harmony colors

Complementary

#475f66

Analogous

#66474f

#664e47

#665d47

Triadic

#664e47

#47664e

#4e4766

Split-complementary

#664e47

#47665d

#474f66

Tetradic

#664e47

#5f6647

#475f66

#4e4766

Square

#664e47

#4f6647

#475f66

#5d4766

Shades

Color #664e47 mixed toward black.

#55413b

#44342f

#332723

#221a18

#110d0c

Tints

Color #664e47 mixed toward white.

#87675e

#a3847b

#baa29c

#d1c1bd

#e8e0de

Tones

Color #664e47 mixed toward gray.

#634f4a

#61514c

#5e524f

#5c5451

#595554

Accessibility

Aa White text on this color

7.65:1

Aa Black text on this color

2.75:1

White text reads better on this background (7.65:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#5d5c49 · ΔE 16.2

Deuteranopia

#5e6049 · ΔE 19

Tritanopia

#654a4a · ΔE 4.1

Achromatopsia

#535353 · ΔE 11.5

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

Code

CSS

background-color: #664e47;

Tailwind (arbitrary value)

bg-[#664e47]

Related colors

Dark Salmon #e9967a

Coral #ff7f50

Orange Red #ff4500

Light Salmon #ffa07a

Tomato #ff6347

Sienna #a0522d

Frequently asked questions

#664e47 (#664e47) is rgb(102, 78, 71) in RGB.

No, #664e47 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 #664e47, or check how it holds up for accessibility.

Generate a palette → Check contrast