you can get them tinted in ANY shade..... you can get them at any sherwin williams supplier.....and it is much much stronger than all those 'do it yourself' kits such as rust oleum.
I am rather expierenced in this field, I do it as a side job to fund my Z ;-), anyways, if you hire someone to do it look at spending at least 1.25/sq ft..... I charge 1.90/ sqft with 1 coat base, 1 coat clear.....