Information about #666440 color

#666440 color image

Basic facts about this digital color

In the Register's classification, #666440 belongs to the Yellow Color Family, featuring Low Saturation and Neutral brightness. In numbers: rgb(102, 100, 64) (40% red, 39.2% green, 25.1% blue), or CMYK 0 / 1 / 15 / 60 for print. Curious how these numbers work? Read our RGB color codes guide.

A softly toned golden yellow, #666440 holds a balanced mid-tone. Expect to see shades like this in versatile mid-ground roles, from cards to secondary buttons. In The Official Register of Color Names it is practically indistinguishable from Woodland (#626746). Its next-closest registered neighbors are Limed Gum (#6B5B3D) and Hemlock (#69684B).

The recipe behind #666440 is rgb(102, 100, 64), with red as the dominant ingredient. Accessibility-wise, white text works best on #666440: 6.1:1 contrast (passing WCAG AA) versus 3.5:1 for black. For print, note the heavy black component (K:60) — ink coverage matters with tones this deep. #666440 has no official name yet. If this shade means something to you, you can be the one to name it.

#666440 color variations

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

#666440 color tints

Tints look brighter, pastel, and less intense.
#666440

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#918E5B

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#B0AD80

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#CAC8AA

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#E4E3D4

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White

#FFFFFF

#666440 color shades

Shades look darker, richer, and more solid.
#666440

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#525133

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#3E3C26

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#292819

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#14140C

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Black

#000000

#666440 color tones

Tones looks more sophisticated and complex than base colors.
#666440

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#6D6C4B

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#737257

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#787764

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#7C7B71

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Grey

#808080

#666440 color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#406746

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#4A6740

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#596740

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#666440

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#675640

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#674640

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#67404A

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#666440 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
#666440
#666440

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#414368
#414368

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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
#666440
#666440

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#524168
#524168

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#415668
#415668

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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
#566841
#566841

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#666440
#666440

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#685241
#685241

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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
#666440
#666440

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#416866
#416866

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#664168
#664168

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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
#666440
#666440

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#436841
#436841

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#414368
#414368

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#664168
#664168

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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
#666440
#666440

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#416852
#416852

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#414368
#414368

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#684156
#684156

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Nearest named colors to #666440

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

Woodland color link
Woodland

#626746

Limed Gum color link
Limed Gum

#6B5B3D

Hemlock color link
Hemlock

#69684B

Triple Stonewall color link
Triple Stonewall

#615A47

Dragon color link
Dragon

#665E4C

Khaki Grey color link
Khaki Grey

#725F3C

Wombat color link
Wombat

#675744

Yellow Metal color link
Yellow Metal

#716338

Tobacco Brown color link
Tobacco Brown

#6D5843

Soya Bean color link
Soya Bean

#6F634B

Triple Pravda color link
Triple Pravda

#675C4C

Triple Arrowtown color link
Triple Arrowtown

#615847

#666440 color backgrounds & wallpapers

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

#666440 color image #666440 color ORCN HD wallpaper 3840x2160 (Desktop)
#666440 color image #666440 color ORCN HD wallpaper 1170x2532 (Mobile)
#666440 color image #666440 color solid HD wallpaper 3840x2160 (Desktop)
#666440 color image #666440 color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#666440
  • RGB102, 100, 64
  • CMYK0, 1, 15, 60
  • CSSrgb(102, 100, 64)
  • HSL57°, 23%, 33%
  • HSL Precise56.842°, 22.892%, 32.549%
  • HSV57°, 37%, 40%
  • HSB57°, 37%, 40%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.392
  • Normalized B (0.0–1.0)0.251
  • GLSLvec3(0.400, 0.392, 0.251)
  • GLSL with alphavec4(0.400, 0.392, 0.251, 1.000)
  • HLSL / Metalfloat3(0.400, 0.392, 0.251)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB39.2%
  • Percentage of Blue in RGB25.1%
  • Color FamilyYellow
  • Saturation FamilyLow Saturation
  • Lightness FamilyNeutral
  • HEX ID666440
  • DECIMAL ID6710336
  • Name LengthThis color has no name
  • Seen by search & AI crawlers14 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.