#646f1f

Color #646f1f

A moderately saturated dark yellow.

Closest named color Dark Olive Green #556b2f · ΔE 11.14 Nearest Tailwind class lime-800 #3c6300 · ΔE 8.9

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

Conversions

HEX

#646f1f

RGB

rgb(100, 111, 31)

HSL

hsl(68.3, 56.3%, 27.8%)

HSV / HSB

hsv(68.3, 72.1%, 43.5%)

CMYK

cmyk(9.9%, 0%, 72.1%, 56.5%)

LAB

lab(44.49, -15.68, 41.04)

LCH

lch(44.49, 43.93, 110.91)

OKLCH

oklch(51.6%, 0.1032, 116.96)

HWB

hwb(68.3, 12.2%, 56.5%)

Harmony colors

Complementary

#2a1f6f

Analogous

#6f521f

#646f1f

#3c6f1f

Triadic

#646f1f

#1f646f

#6f1f64

Split-complementary

#646f1f

#1f3c6f

#521f6f

Tetradic

#646f1f

#1f6f2a

#2a1f6f

#6f1f64

Square

#646f1f

#1f6f52

#2a1f6f

#6f1f3c

Shades

Color #646f1f mixed toward black.

#535c1a

#434a15

#32370f

#21250a

#111205

Tints

Color #646f1f mixed toward white.

#8f9f2c

#b6c93f

#c8d76f

#dbe49f

#edf2cf

Tones

Color #646f1f mixed toward gray.

#5f6826

#5a612c

#555b33

#51543a

#4c4e40

Accessibility

Aa White text on this color

5.48:1

Aa Black text on this color

3.84:1

White text reads better on this background (5.48:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#69693e · ΔE 7.6

Deuteranopia

#686744 · ΔE 9.8

Tritanopia

#654e51 · ΔE 32.6

Achromatopsia

#696969 · ΔE 22.4

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

Code

CSS

background-color: #646f1f;

Tailwind (arbitrary value)

bg-[#646f1f]

Related colors

Ivory #fffff0

Beige #f5f5dc

Light Goldenrod Yellow #fafad2

Light Yellow #ffffe0

Olive #808000

Yellow #ffff00

Frequently asked questions

#646f1f (#646f1f) is rgb(100, 111, 31) in RGB.

No, #646f1f 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #646f1f, or check how it holds up for accessibility.

Generate a palette → Check contrast