What is the hex code for #666666?

The hex code for #666666 is #666666. In RGB that is rgb(102, 102, 102).

What is the CMYK value of #666666?

#666666 converts to CMYK cmyk(0%, 0%, 0%, 60%) for print, and OKLCH oklch(0.5103 0 0) for modern color workflows.

What is the closest Pantone color to #666666?

The closest Pantone-style match to #666666 is PANTONE Cool Gray 11 C (Slate Gray). This is an approximation labeled "closest match", not an official Pantone value.

#666666 — #666666

#666666 hex code is #666666. Below are all common color formats, the nearest CSS named color, and the closest Pantone-style match.

#666666rgb(102, 102, 102)

#666666 is a hex color. Here are its RGB, HSL, HSV, CMYK and OKLCH values, the nearest CSS named color, and the closest Pantone-style match.

#666666 in every format

HEX	#666666
RGB	rgb(102, 102, 102)
HSL	hsl(0, 0%, 40%)
HSV	hsv(0, 0%, 40%)
CMYK	cmyk(0%, 0%, 0%, 60%)
OKLCH	oklch(0.5103 0 0)

#666666 to Pantone & nearest name

Nearest CSS named color	dimgray
Closest Pantone-style match	PANTONE Cool Gray 11 C · Slate Gray
Readable text color on this background	#FFFFFF

Pantone result is the nearest entry in our approximation set and is labeled "closest match" — it is not an official Pantone color value.

Convert another color

#666666nearest CSS color: dimgray

HEX#666666

RGBrgb(102, 102, 102)

HSLhsl(0, 0%, 40%)

HSVhsv(0, 0%, 40%)

CMYKcmyk(0%, 0%, 0%, 60%)

OKLCHoklch(0.5103 0 0)

Nearest CSS named color

dimgray

Closest Pantone-style match

PANTONE Cool Gray 11 C · Slate Gray

Pantone match is an approximation labeled "closest match" — not an official Pantone value.

Get this color as JSON (developer API)

curl "https://color.wrapper-agency.com/api/v1/color?value=%23666666"

Free color-conversion API — no key during beta. Returns all formats plus nearest named and closest Pantone-style match.

Related colors

Spotify Green

#1DB954

International Klein Blue

FAQ

What is the #666666 hex code?: #666666 is #666666.
What is #666666 in RGB and CMYK?: #666666 is rgb(102, 102, 102) in RGB and cmyk(0%, 0%, 0%, 60%) in CMYK.
Is this an official Pantone value?: No. HueKit shows the closest match from an approximation set for guidance only. For production print, confirm against an official Pantone guide.