Munsell color system
Videos
The Munsell color system is a color space that specifies colors based on three properties of color: hue, value, and chroma. It was created by Albert H. Munsell in the first decade of the 20th century
Runge's Farbenkugel (Color Sphere), 1810
Albert H. Munsell
Several editions of the Munsell Book of Color. The atlas is arranged into removable pages of color swatches of varying value and chroma for each of 40 particular hues.
Soil color
Videos
Soil color is often the most visually apparent property of soil. While color itself does not influence the behavior or practical use of soils, it does indicate important information about soil organic
Soil colors influenced by mineralogy
Dark soil color imparted by organic matter in Illinois, US
Highly oxidized red soil in Tirunelveli District, India
Glauconitic, green soil from Maryland, US