Information about #645B3B color

#645B3B color image

Basic facts about this digital color

The digital color #645B3B is classified in the Register under the Yellow Color Family, with Mild Saturation and Neutral brightness. In numbers: rgb(100, 91, 59) (39.2% red, 35.7% green, 23.1% blue), or CMYK 0 / 4 / 16 / 61 for print. New to color codes? See our guide to RGB color codes.

The color #645B3B reads as a softly balanced golden yellow and sits comfortably between light and dark. Designers typically reach for tones like this for balanced palettes where no single element should shout. In The Official Register of Color Names it is practically indistinguishable from Limed Gum (#6B5B3D). Nearby in the Register you will also find Toasted Green (#655535) and Wombat (#675744).

In RGB terms — rgb(100, 91, 59) — the red channel does the heavy lifting here. On this background, white text reaches a 6.8:1 contrast ratio (passing WCAG AA); black stays at 3.1:1. On paper it relies strongly on black ink (K:61), so proof dark layouts before a large print run. No one has named #645B3B so far. Register a name for it and it becomes a permanent record.

#645B3B color variations

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

#645B3B color tints

Tints look brighter, pastel, and less intense.
#645B3B

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#8F8354

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#B0A479

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#CAC2A6

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#E4E0D2

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White

#FFFFFF

#645B3B color shades

Shades look darker, richer, and more solid.
#645B3B

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#4F482E

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#3B3623

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#272417

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#13120B

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Black

#000000

#645B3B color tones

Tones looks more sophisticated and complex than base colors.
#645B3B

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#6B6346

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#716B53

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#777260

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#7B796F

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Grey

#808080

#645B3B color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#3B633A

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#4B633A

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#5C633A

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#645B3B

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#634A3A

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#633A3B

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#633A4B

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#645B3B 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
#645B3B
#645B3B

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#3A4364
#3A4364

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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
#645B3B
#645B3B

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#463A64
#463A64

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#3A5864
#3A5864

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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
#58643A
#58643A

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#645B3B
#645B3B

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#64463A
#64463A

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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
#645B3B
#645B3B

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#3A645B
#3A645B

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#5B3A64
#5B3A64

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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
#645B3B
#645B3B

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#43643A
#43643A

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#3A4364
#3A4364

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#5B3A64
#5B3A64

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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
#645B3B
#645B3B

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#3A6446
#3A6446

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#3A4364
#3A4364

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#643A58
#643A58

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Nearest named colors to #645B3B

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

Limed Gum color link
Limed Gum

#6B5B3D

Toasted Green color link
Toasted Green

#655535

Wombat color link
Wombat

#675744

Spark color link
Spark

#695341

Contemplation In A Tea Garden color link
Contemplation In A Tea Garden

#665343

Hibernate color link
Hibernate

#5A5539

Triple Stonewall color link
Triple Stonewall

#615A47

Tobacco Brown color link
Tobacco Brown

#6D5843

Triple Arrowtown color link
Triple Arrowtown

#615847

Iwai Brown color link
Iwai Brown

#5E5545

Dark Grayish Olive color link
Dark Grayish Olive

#595942

Filmpro Raw Sienna color link
Filmpro Raw Sienna

#66592E

#645B3B color backgrounds & wallpapers

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

#645B3B color image #645B3B color ORCN HD wallpaper 3840x2160 (Desktop)
#645B3B color image #645B3B color ORCN HD wallpaper 1170x2532 (Mobile)
#645B3B color image #645B3B color solid HD wallpaper 3840x2160 (Desktop)
#645B3B color image #645B3B color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#645B3B
  • RGB100, 91, 59
  • CMYK0, 4, 16, 61
  • CSSrgb(100, 91, 59)
  • HSL47°, 26%, 31%
  • HSL Precise46.829°, 25.786%, 31.176%
  • HSV47°, 41%, 39%
  • HSB47°, 41%, 39%
  • Normalized R (0.0–1.0)0.392
  • Normalized G (0.0–1.0)0.357
  • Normalized B (0.0–1.0)0.231
  • GLSLvec3(0.392, 0.357, 0.231)
  • GLSL with alphavec4(0.392, 0.357, 0.231, 1.000)
  • HLSL / Metalfloat3(0.392, 0.357, 0.231)
  • Percentage of Red in RGB39.2%
  • Percentage of Green in RGB35.7%
  • Percentage of Blue in RGB23.1%
  • Color FamilyYellow
  • Saturation FamilyMild Saturation
  • Lightness FamilyNeutral
  • HEX ID645B3B
  • DECIMAL ID6576955
  • Name LengthThis color has no name
  • Seen by search & AI crawlers16 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.