Information about #666C64 color

#666C64 color image

Basic facts about this digital color

In the Register's classification, #666C64 belongs to the Chartreuse Color Family, featuring Desaturated and Light brightness. In numbers: rgb(102, 108, 100) (40% red, 42.4% green, 39.2% blue), or CMYK 2 / 0 / 3 / 58 for print. Curious how these numbers work? Read our RGB color codes guide.

#666C64 presents itself as a softly muted neutral grey — one that carries an easy, daylight feel. It is a natural fit for versatile mid-ground roles, from cards to secondary buttons. In The Official Register of Color Names it is almost identical to Chicane (#686765). Slightly further away sit Granite Gray (#676767) and Double Trojan (#656664).

Technically, the mix leans on its green channel (rgb(102, 108, 100)), which gives #666C64 its character. Accessibility-wise, white text works best on #666C64: 5.4:1 contrast (passing WCAG AA) versus 3.9:1 for black. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#666C64 color variations

View this color variations of tints, shades, tones and hues.

#666C64 color tints

Tints look brighter, pastel, and less intense.
#666C64

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#848B81

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#A2A8A1

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#C1C5C0

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#E0E2DF

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White

#FFFFFF

#666C64 color shades

Shades look darker, richer, and more solid.
#666C64

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#515650

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#3D413C

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#282B28

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#141514

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Black

#000000

#666C64 color tones

Tones looks more sophisticated and complex than base colors.
#666C64

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#6B7069

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#70746F

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#757874

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#7A7B79

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Grey

#808080

#666C64 color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#646C6C

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#646C68

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#646C65

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#666C64

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#696C64

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#6C6C64

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#6C6864

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#666C64 color harmonies

Color harmonies are pleasing color schemes created according to their position on a color wheel.

Complementary

Complementary color schemes are made by picking two opposite colors con the color wheel. They appear vibrant near to each other.

Complementary color schemes
#666C64
#666C64

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#6B646D
#6B646D

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Split complementary

Split complementary schemes are like complementary but they uses two adiacent colors of the complement. They are more flexible than complementary ones.

Split complementary color scheme
#666C64
#666C64

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#6D646B
#6D646B

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#66646D
#66646D

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Analogous

Analogous color schemes are made by picking three colors that are next to each other on the color wheel. They are perceived as calm and serene.

Analogous color scheme
#646D66
#646D66

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#666C64
#666C64

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#6B6D64
#6B6D64

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Triadic

Triadic color schemes are created by picking three colors equally spaced on the color wheel. They appear quite contrasted and multicolored.

Triadic color scheme
#666C64
#666C64

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#64666D
#64666D

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#6D6466
#6D6466

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Tetradic

Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.

Tetradic color scheme
#666C64
#666C64

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#646D6B
#646D6B

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#6B646D
#6B646D

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#6D6466
#6D6466

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Square

Square color schemes are like tetradic arranged in a square instead of rectangle. Colors appear even more contrasting.

Square color scheme
#666C64
#666C64

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#646B6D
#646B6D

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#6B646D
#6B646D

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#6D6664
#6D6664

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Nearest named colors to #666C64

The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.

Chicane color link
Chicane

#686765

Granite Gray color link
Granite Gray

#676767

Double Trojan color link
Double Trojan

#656664

Dim Gray color link
Dim Gray

#696969

Double Tapa color link
Double Tapa

#6A6A5F

Triple Stack color link
Triple Stack

#656660

Traffic color link
Traffic

#6C6D68

Corduroy color link
Corduroy

#606E68

Port Phillip color link
Port Phillip

#647464

Storm Dust color link
Storm Dust

#646463

Cloudy Gray color link
Cloudy Gray

#6D6968

Emma's Green Eyes color link
Emma's Green Eyes

#677460

#666C64 color backgrounds & wallpapers

Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.

#666C64 color image #666C64 color ORCN HD wallpaper 3840x2160 (Desktop)
#666C64 color image #666C64 color ORCN HD wallpaper 1170x2532 (Mobile)
#666C64 color image #666C64 color solid HD wallpaper 3840x2160 (Desktop)
#666C64 color image #666C64 color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#666C64
  • RGB102, 108, 100
  • CMYK2, 0, 3, 58
  • CSSrgb(102, 108, 100)
  • HSL105°, 4%, 41%
  • HSL Precise105°, 3.846%, 40.784%
  • HSV105°, 7%, 42%
  • HSB105°, 7%, 42%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.424
  • Normalized B (0.0–1.0)0.392
  • GLSLvec3(0.400, 0.424, 0.392)
  • GLSL with alphavec4(0.400, 0.424, 0.392, 1.000)
  • HLSL / Metalfloat3(0.400, 0.424, 0.392)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB42.4%
  • Percentage of Blue in RGB39.2%
  • Color FamilyChartreuse
  • Saturation FamilyDesaturated
  • Lightness FamilyLight
  • HEX ID666C64
  • DECIMAL ID6712420
  • Name LengthThis color has no name
  • Seen by search & AI crawlers25 times
  • Counting from2025-01-01

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ORCN is an independent private organisation that maintains a public register — not a governmental institution or an international standards organisation — in which a name is linked to a specific digital colour code. Registration gives the registrant the exclusive right, within the ORCN register, to have that name recorded against that colour code.

Important: a digital colour itself belongs to no one in law. That right exists only within the ORCN register: registration creates no ownership, trademark, copyright or design rights anywhere. Legal exclusivity outside the register, where it is available at all, arises separately under applicable trademark law and is generally limited to particular goods, services and jurisdictions.