#666551

Color #666551

A nearly neutral, gray-leaning dark yellow.

Closest named color Dim Gray #696969 · ΔE 12.16 Nearest Tailwind class olive-600 #5b5b4b · ΔE 4

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

Conversions

HEX

#666551

RGB

rgb(102, 101, 81)

HSL

hsl(57.1, 11.5%, 35.9%)

HSV / HSB

hsv(57.1, 20.6%, 40%)

CMYK

cmyk(0%, 1%, 20.6%, 60%)

LAB

lab(42.35, -3.36, 11.5)

LCH

lch(42.35, 11.98, 106.29)

OKLCH

oklch(50.2%, 0.0304, 105.04)

HWB

hwb(57.1, 31.8%, 60%)

Harmony colors

Complementary

#515266

Analogous

#665b51

#666551

#5d6651

Triadic

#666551

#516665

#655166

Split-complementary

#666551

#515d66

#5b5166

Tetradic

#666551

#526651

#515266

#655166

Square

#666551

#51665b

#515266

#66515d

Shades

Color #666551 mixed toward black.

#555444

#444336

#333329

#22221b

#11110e

Tints

Color #666551 mixed toward white.

#848369

#9f9d85

#b7b6a4

#cfcec2

#e7e7e1

Tones

Color #666551 mixed toward gray.

#646353

#636255

#616056

#5f5f58

#5d5d5a

Accessibility

Aa White text on this color

5.92:1

Aa Black text on this color

3.55:1

White text reads better on this background (5.92:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#666656 · ΔE 1.7

Deuteranopia

#666658 · ΔE 2.6

Tritanopia

#665a5b · ΔE 14.8

Achromatopsia

#646464 · ΔE 9.8

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

Code

CSS

background-color: #666551;

Tailwind (arbitrary value)

bg-[#666551]

Related colors

Dark Khaki #bdb76b

Pale Goldenrod #eee8aa

Ivory #fffff0

Beige #f5f5dc

Light Goldenrod Yellow #fafad2

Light Yellow #ffffe0

Frequently asked questions

#666551 (#666551) is rgb(102, 101, 81) in RGB.

No, #666551 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 #666551, or check how it holds up for accessibility.

Generate a palette → Check contrast