The light in this photo gives a yellowish cast, but the results are fantanstic. Primers, as opposed to 'full-on' paint tends to apply thinner and cover better provided you don't have a heavy hand with the can.
This is "Rustoleum", in OFF-BLACK... no full black or standard gray. It kinda splits the difference between the two. I prime figs, vehicles, everything with this stuff and my results have been very satisfactory. It sells for around $5 a can, and does a great job, however, towards the end of the can, or if it has sat for a while, it can "spit" and ruin your project. Always (and this is a good rule for any product) test it first. I use a cardboard box to spray into and keep the overspary contained. A few test shots inside the box before I spray the model or fig is a good idea before I prime.