blondi defintiely
Hi Dot.
Various colour processes were around then and very expensive
The Beeb had a tele prog on Frieze Green and a two colour movie process which they had re=enginneered, recently
There is archive film knocking around of the 1939 N Y world's fair in colour in techni color I think with the reds very saturated (=red)
and and and Agfa was pioneering a German system so when the Fuhrer heard about it, they volunteered, as the Germans used to then, to give him a stock of it for his home movies