British WWII national insigna colors

I am building a 1/32 Battle of Britian Spifire MkII and will painting the roundels I am interest n the best colors to use is the blue close to testors insigna blue same for the chrome yellow finally the red looks like a brick red what is the closest match. Thanks!

I use Tamiya Flat Blue (XF-8) with a touch of Flat Black (XF-1) to darken it up a bit.

Here’s a link to my method that you may find useful.

http://cs.finescale.com/fsm/modeling_subjects/f/2/t/164178.aspx