This is my best shot at the colour Garance which seems to have been very popular in the 19th century, especially in Spain and France.
Although Perry make a number of less “uniform” chaps, I am making this first brigade (the Guipuzcoans) as close to regular looking as possible. The Navarrese, the second brigade, will be much more irregular looking. I will shortly have bought all the figures for this brigade (4 battalions, 2 squadrons, one battery and one general) so progress is being made, if slowly.
In the bottom picture you can see the difference between the two shades of red.