I hope that I did this Quote thing right . Anyway think of Petty blue when thinking of the color and why it was thought of orange at one time . It was 1910 when it was put together money was not spent like it is today on a race car . Could they have just mixed what they had in cans and there it is A dark yellow orange kind of color. The car is what it is in the old before untouched colors . It does not look like a bright yellow to me (that is just my eye ) , I also do not think that yellow darkens with age .Just my 10 cents worth .