Matt uses Silver Chain (formerly Harbor Gray) in flat from Benjamin Moore for walls. For ceilings, Matt uses Tricorn Black or Pure White, both from Sherwin-Williams. For trim in the house or garage, White Dove (or sometimes called Dove White) from Benjamin Moore. For the trim you want semi-gloss. For the ceiling and walls be sure to get flat and also make sure it's interior paint.
Silver Chain 1472 | Benjamin Moore
Tricorn Black SW 6258 - Neutral Paint Color - Sherwin-Williams
Pure White 7005 - Sherwin-Williams
White Dove - OC-17 - Benjamin Moore
Keep in mind that Sherwin Williams (or Lowes) can match the BM colors and make them for you.