#646c00

Color #646c00

A vivid, highly saturated dark yellow.

Closest named color Olive #808000 · ΔE 11.42 Nearest Tailwind class lime-800 #3c6300 · ΔE 9.6

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Conversions

HEX

#646c00

RGB

rgb(100, 108, 0)

HSL

hsl(64.4, 100%, 21.2%)

HSV / HSB

hsv(64.4, 100%, 42.4%)

CMYK

cmyk(7.4%, 0%, 100%, 57.6%)

LAB

lab(43.41, -15.27, 49.37)

LCH

lch(43.41, 51.68, 107.19)

OKLCH

oklch(50.7%, 0.1146, 114.75)

HWB

hwb(64.4, 0%, 57.6%)

Harmony colors

Complementary

#08006c

Analogous

#6c3e00

#646c00

#2e6c00

Triadic

#646c00

#00646c

#6c0064

Split-complementary

#646c00

#002e6c

#3e006c

Tetradic

#646c00

#006c08

#08006c

#6c0064

Square

#646c00

#006c3e

#08006c

#6c002e

Shades

Color #646c00 mixed toward black.

#535a00

#434800

#323600

#212400

#111200

Tints

Color #646c00 mixed toward white.

#a2af00

#e0f200

#f0ff36

#f5ff79

#faffbc

Tones

Color #646c00 mixed toward gray.

#5d6309

#555a12

#4d511b

#454824

#3e3f2d

Accessibility

Aa White text on this color

5.7:1

Aa Black text on this color

3.69:1

White text reads better on this background (5.7:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#686836 · ΔE 8

Deuteranopia

#67663c · ΔE 10

Tritanopia

#64484b · ΔE 34.7

Achromatopsia

#676767 · ΔE 24

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

Code

CSS

background-color: #646c00;

Tailwind (arbitrary value)

bg-[#646c00]

Related colors

Ivory #fffff0

Beige #f5f5dc

Light Goldenrod Yellow #fafad2

Light Yellow #ffffe0

Olive #808000

Yellow #ffff00

Frequently asked questions

#646c00 (#646c00) is rgb(100, 108, 0) in RGB.

No, #646c00 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 #646c00, or check how it holds up for accessibility.

Generate a palette → Check contrast