Would you hazard a guess as to the color of the kilt in the following description?

He himself, in variegated array, advances with lofty mein. Thó garter ribbons hanging at his leg were dyed with Corycian saffron, and with the tint of the Syrian shell, as was his plaid. His sister had embroidered his tunic with the red gold, and a double line of purple went round his terrible shoulders.


I am wondering if the original clan MacMartin wore saffron (as a base) and used a type of red dye, or purple to offset the base color.