What are the colors on Scouting Recommendation Screen mean?
 

What do the green, red, and blue player names mean?

How good the combines are:
Red Combine = Awesome
Blue Combine = Real Good
Black Combine = Normal
Green Combine = Poor

Player Names:
Blue = Interviewed
Red = You have manually marked them
Black = Normal

When searching for FA:

Green = player on your team likes this player
Blue = player on your team does not like this player
Red = injured player

Redhawk, I think he means when you click on recommend player. And Mizzou, just one adjustment to your post. Red means a player that's already on your team/free agent from your team. Orange = injured.