Translation: marrón y púrpuro
Purple is "morado," brown is "marrón," and orange is "naranja" in Spanish.
For the color brown, you say: marrón
piel morena is how you say brown skin in spanish
In spanish to say brown you must say cafe "Brown" in Spanish is "café". It is pronounced "ka-FAY".
Translation: bestia morada
Translation: ardilla morada
Translation: morado oscuro
Translation: calcetines morados
Translation: pengüinos morados
"Brown duck" in Spanish is "pato marrón".
"Purple Acres" is a proper noun, so it would be improper to translate.
With chocolate brown, I would say use a beautiful lilac.