#646e61

Color #646e61

A nearly neutral, gray-leaning medium green.

Closest named color Dim Gray #696969 · ΔE 8.86 Nearest Tailwind class olive-600 #5b5b4b · ΔE 8

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

Conversions

HEX

#646e61

RGB

rgb(100, 110, 97)

HSL

hsl(106.2, 6.3%, 40.6%)

HSV / HSB

hsv(106.2, 11.8%, 43.1%)

CMYK

cmyk(9.1%, 0%, 11.8%, 56.9%)

LAB

lab(45.25, -6.49, 5.97)

LCH

lch(45.25, 8.82, 137.39)

OKLCH

oklch(52.6%, 0.0234, 138.47)

HWB

hwb(106.2, 38%, 56.9%)

Harmony colors

Complementary

#6b616e

Analogous

#6b6e61

#646e61

#616e65

Triadic

#646e61

#61646e

#6e6164

Split-complementary

#646e61

#65616e

#6e616b

Tetradic

#646e61

#616e6b

#6b616e

#6e6164

Square

#646e61

#616b6e

#6b616e

#6e6561

Shades

Color #646e61 mixed toward black.

#535c51

#434941

#323731

#212520

#111210

Tints

Color #646e61 mixed toward white.

#7c8979

#97a094

#b1b8ae

#cbd0c9

#e5e7e4

Tones

Color #646e61 mixed toward gray.

#656d62

#656c63

#666b64

#666a65

#676966

Accessibility

Aa White text on this color

5.32:1

Aa Black text on this color

3.94:1

White text reads better on this background (5.32:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#686964 · ΔE 6.4

Deuteranopia

#686765 · ΔE 8.7

Tritanopia

#656767 · ΔE 8.5

Achromatopsia

#6b6b6b · ΔE 9.1

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

Code

CSS

background-color: #646e61;

Tailwind (arbitrary value)

bg-[#646e61]

Related colors

Forest Green #228b22

Mint Green #98ff98

Dark Green #006400

Dark Sea Green #8fbc8f

Green #008000

Honeydew #f0fff0

Frequently asked questions

#646e61 (#646e61) is rgb(100, 110, 97) in RGB.

No, #646e61 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 #646e61, or check how it holds up for accessibility.

Generate a palette → Check contrast