#646464 Color (Hex and RGB)

#646464

rgb(100 100 100) · reads as gray

#646464 has RGB values (100, 100, 100). The color reads primarily as gray in sRGB space.

Color values

Format	Value	Channels
HEX	`#646464`	R64G64B64
RGB	`rgb(100 100 100)`	R100G100B100
HSL	`hsl(0 0% 39%)`	H0°S0%L39%
OKLCH	`oklch(50% 0 90)`	L0.5C0H90°
HSV	`hsv(0, 0%, 39%)`	H0°S0%V39%
CMYK	`cmyk(0%, 0%, 0%, 61%)`	C0%M0%Y0%K61%

RGB mix

Red100 39.22%
Green100 39.22%
Blue100 39.22%

Base numbers

Base	R	G	B
Binary	`01100100`	`01100100`	`01100100`
Octal	`144`	`144`	`144`
Decimal	`100`	`100`	`100`
Hex	`64`	`64`	`64`

Shades & tints

Shades mix #646464 with black; tints mix it with white. Click any swatch to explore it.

Shades

Tints

Color harmonies

Complementary

Opposite on the color wheel — maximum contrast.

Analogous

Neighbors 30° either side — calm and cohesive.

Triadic

Three hues spaced 120° apart — vibrant balance.

Monochromatic

Same hue and saturation, different lightness.

Similar brand colors

The closest colors from our brand palettes, measured in OKLab.

Contrast & accessibility

WCAG 2.1 contrast against white and black. Test other pairs in the contrast checker.

#646464 on #FFFFFF

5.92:1

AA ✓AAA ✕AA Large ✓AAA Large ✓

#646464 on #000000

3.55:1

AA ✕AAA ✕AA Large ✓AAA Large ✕

#FFFFFF on #646464