Information about #663D3D color

#663D3D color image

Basic facts about this digital color

#663D3D falls into the Red Color Family — Mild Saturation, Neutral brightness. The mix behind it: rgb(102, 61, 61) — 40% red, 23.9% green, 23.9% blue; the print equivalent is CMYK 0 / 16 / 16 / 60. New to color codes? See our guide to RGB color codes.

A mildly saturated warm red, #663D3D occupies the middle of the lightness scale. 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 almost identical to Purple Brown (#673A3F). Slightly further away sit Solar Flare (#693E40) and Brunette (#634041).

Technically, the mix leans on its red channel (rgb(102, 61, 61)), which gives #663D3D its character. On this background, white text reaches a 9.1:1 contrast ratio (passing WCAG AAA); black stays at 2.3:1. For print, note the heavy black component (K:60) — ink coverage matters with tones this deep. This shade is reserved in the Register and is not available for naming.

#663D3D color variations

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

#663D3D color tints

Tints look brighter, pastel, and less intense.
Reserved

Color has no name
#915757

Color has no name
#B07C7C

Color has no name
#CAA8A8

Color has no name
#E4D3D3

Color has no name
White

#FFFFFF

#663D3D color shades

Shades look darker, richer, and more solid.
Reserved

#663D3D
#513030

Color has no name
#3D2424

Color has no name
#281818

Color has no name
#140C0C

Color has no name
Black

#000000

#663D3D color tones

Tones looks more sophisticated and complex than base colors.
Reserved

#663D3D
#6C4848

Color has no name
#725454

Color has no name
#786262

Color has no name
#7C7070

Color has no name
Grey

#808080

#663D3D color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#5D663D

Color has no name
#665D3D

Color has no name
#664D3D

Color has no name
Reserved

#663D3D
#663D4D

Color has no name
#663D5D

Color has no name
#5D3D66

Color has no name

#663D3D 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
#663D3D
#663D3D

Color has no name

#3D6666
#3D6666

Color has no name

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
#663D3D
Reserved

Color has no name

#3D5266
#3D5266

Color has no name

#3D6652
#3D6652

Color has no name

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
#66523D
#66523D

Color has no name

#663D3D
Reserved

Color has no name

#663D52
#663D52

Color has no name

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
#663D3D
#663D3D

Color has no name

#3D663D
#3D663D

Color has no name

#3D3D66
#3D3D66

Color has no name

Tetradic

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

Tetradic color scheme
#663D3D
#663D3D

Color has no name

#66663D
#66663D

Color has no name

#3D6666
#3D6666

Color has no name

#3D3D66
#3D3D66

Color has no name

Square

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

Square color scheme
#663D3D
#663D3D

Color has no name

#52663D
#52663D

Color has no name

#3D6666
#3D6666

Color has no name

#523D66
#523D66

Color has no name

Nearest named colors to #663D3D

The closest officially registered color names in the Register, ordered by similarity.

Purple Brown color link
Purple Brown

#673A3F

Solar Flare color link
Solar Flare

#693E40

Brunette color link
Brunette

#634041

Lexington color link
Lexington

#683E37

Double Lumberjack color link
Double Lumberjack

#633E36

Sanguine Brown color link
Sanguine Brown

#6C3736

Matchmaker color link
Matchmaker

#6D3540

Tawny Port color link
Tawny Port

#643A48

Deep Coffee color link
Deep Coffee

#704241

Metallic Copper color link
Metallic Copper

#6E3D34

Purplish Brown color link
Purplish Brown

#6B4247

Abrownrami color link
Abrownrami

#693B31

#663D3D color backgrounds & wallpapers

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

#663D3D color image #663D3D color ORCN HD wallpaper 3840x2160 (Desktop)
#663D3D color image #663D3D color ORCN HD wallpaper 1170x2532 (Mobile)
#663D3D color image #663D3D color solid HD wallpaper 3840x2160 (Desktop)
#663D3D color image #663D3D color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#663D3D
  • RGB102, 61, 61
  • CMYK0, 16, 16, 60
  • CSSrgb(102, 61, 61)
  • HSL0°, 25%, 32%
  • HSL Precise0°, 25.153%, 31.961%
  • HSV0°, 40%, 40%
  • HSB0°, 40%, 40%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.239
  • Normalized B (0.0–1.0)0.239
  • GLSLvec3(0.400, 0.239, 0.239)
  • GLSL with alphavec4(0.400, 0.239, 0.239, 1.000)
  • HLSL / Metalfloat3(0.400, 0.239, 0.239)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB23.9%
  • Percentage of Blue in RGB23.9%
  • Color Family (Hue)Red
  • Saturation FamilyMild Saturation
  • Lightness FamilyNeutral
  • HEX ID663D3D
  • DECIMAL ID6700349
  • Name LengthThis color has no name
  • This page visited6 times
  • Counting from2025-01-01

Copyright © 2021-2026 The Official Register of Color Names. All Rights Reserved.