Information about #664B0A color
Basic facts about this digital color
#664B0A presents itself as a vivid, lively orange — one that carries a shadowy depth. In practice it works well for night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is practically indistinguishable from Mud Brown (#60460F). Nearby in the Register you will also find Violin Brown (#674403) and Olive Brown (#645403).
Technically, the mix leans on its red channel (rgb(102, 75, 10)), which gives #664B0A its character. If you plan to put text on a #664B0A background, choose white — the contrast ratio is 8.2:1 (passing WCAG AAA), while black manages only 2.6:1. On paper it relies strongly on black ink (K:60), so proof dark layouts before a large print run. Out of 16,777,216 possible colors, #664B0A is still unnamed — it can be claimed and named in The Official Register of Color Names.
#664B0A color variations
View this color variations of tints, shades, tones and hues.
#664B0A color tints
Tints look brighter, pastel, and less intense.
#664B0A color shades
Shades look darker, richer, and more solid.
#664B0A color tones
Tones looks more sophisticated and complex than base colors.
#664B0A color hues
A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#664B0A 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.
Split complementary
Split complementary schemes are like complementary but they uses two adiacent colors of the complement. They are more flexible than complementary ones.
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.
Triadic
Triadic color schemes are created by picking three colors equally spaced on the color wheel. They appear quite contrasted and multicolored.
Tetradic
Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.
Square
Square color schemes are like tetradic arranged in a square instead of rectangle. Colors appear even more contrasting.
Alternatives to #664B0A color
View adjacent and very similar colors.
Nearest named colors to #664B0A
The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.
#60460F
#674403
#645403
#594E00
#704214
#594300
#713E02
#6E3A07
#544E03
#595900
#696006
#563C0D
#664B0A color backgrounds & wallpapers
Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.
Conversions between color systems and etc.
- HEX#664B0A
- RGB102, 75, 10
- CMYK0, 11, 36, 60
- CSSrgb(102, 75, 10)
- HSL42°, 82%, 22%
- HSL Precise42.391°, 82.143%, 21.961%
- HSV42°, 90%, 40%
- HSB42°, 90%, 40%
- Normalized R (0.0–1.0)0.400
- Normalized G (0.0–1.0)0.294
- Normalized B (0.0–1.0)0.039
- GLSLvec3(0.400, 0.294, 0.039)
- GLSL with alphavec4(0.400, 0.294, 0.039, 1.000)
- HLSL / Metalfloat3(0.400, 0.294, 0.039)
- Percentage of Red in RGB40%
- Percentage of Green in RGB29.4%
- Percentage of Blue in RGB3.9%
- Color FamilyOrange
- Saturation FamilyHigh Saturation
- Lightness FamilyDark
- HEX ID664B0A
- DECIMAL ID6703882
- Name LengthThis color has no name
- Seen by search & AI crawlers10 times
- Counting from2025-01-01



