#666558

Color #666558

A nearly neutral, gray-leaning dark yellow.

Closest named color Dim Gray #696969 · ΔE 8.03 Nearest Tailwind class olive-600 #5b5b4b · ΔE 4.1

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

Conversions

HEX

#666558

RGB

rgb(102, 101, 88)

HSL

hsl(55.7, 7.4%, 37.3%)

HSV / HSB

hsv(55.7, 13.7%, 40%)

CMYK

cmyk(0%, 1%, 13.7%, 60%)

LAB

lab(42.52, -2.13, 7.51)

LCH

lch(42.52, 7.81, 105.83)

OKLCH

oklch(50.4%, 0.0201, 103.55)

HWB

hwb(55.7, 34.5%, 60%)

Harmony colors

Complementary

#585966

Analogous

#665e58

#666558

#606658

Triadic

#666558

#586665

#655866

Split-complementary

#666558

#586066

#5e5866

Tetradic

#666558

#596658

#585966

#655866

Square

#666558

#58665e

#585966

#665860

Shades

Color #666558 mixed toward black.

#555449

#44433b

#33332c

#22221d

#11110f

Tints

Color #666558 mixed toward white.

#838171

#9c9b8d

#b5b4a9

#cecdc6

#e6e6e2

Tones

Color #666558 mixed toward gray.

#656459

#64635a

#63625c

#61615d

#60605e

Accessibility

Aa White text on this color

5.89:1

Aa Black text on this color

3.57:1

White text reads better on this background (5.89:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#66665b · ΔE 1.1

Deuteranopia

#66665c · ΔE 1.5

Tritanopia

#665e5e · ΔE 9.6

Achromatopsia

#646464 · ΔE 6.9

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

Code

CSS

background-color: #666558;

Tailwind (arbitrary value)

bg-[#666558]

Related colors

Dark Khaki #bdb76b

Pale Goldenrod #eee8aa

Khaki #f0e68c

Lemon Chiffon #fffacd

Ivory #fffff0

Beige #f5f5dc

Frequently asked questions

#666558 (#666558) is rgb(102, 101, 88) in RGB.

No, #666558 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 #666558, or check how it holds up for accessibility.

Generate a palette → Check contrast