The photo below shows the different colors together, so you can see the differences.
Coyote Tan/Khaki: Coyote Tan is not "tan" at all. It's a light olive-green, like WWII Khaki. The Garand Belt Pouch pictured above is made out of Coyote Tan fabric. This is also a very good neutral color for camouflage.
OD Green: The color used by the military from the middle of World War II up until recently.
Multicam: A new camouflage scheme created by Crye Precision. It works in just about every environment except snow. To see photos of how it works in many different environments, visit the Multicam website's Gallery.
Black: Basic black, used by LEOs and civilians.
MARPAT: MARPAT Digital Woodland. This is a commercially-made copy of the Marine Corps fabric. 1000d Cordura.
When you buy gear from Olongapo Outfitters, you're getting gear that will last--whether you use it at the range or out in the field under the harshest conditions.
"We have two companies of Marines running rampant all over the northern half of this island, and three Army regiments pinned down in the southwestern corner, doing nothing. What the hell is going on? "
Gen. John W. Vessey Jr., USA, Chairman of the the Joint Chiefs of Staff
during the assault on Grenada, 1983