Color matching the paint: The Home Depot vs Dunn Edwards or Frazee

Color matching at The Home Depot.

The Home Depot will take the least amount of time to color match.
The Home Depot does't color match. They read and shoot. The machine does all the work. 

Dunn Edwards or Sherwin Williams

Sherwin Williams and Dunn Edwards color matches usually take about 3 hours. They read and shoot first and adjust the color to give you an exact match.