What race was Legolas?

[Morgul Queen]

Thranduil was Doriathrin, so he would be Eluwaith...ah...Sindar...but he ruled Greenwood which was mostly populated by Nandor.

Golden hair is a trait of the Vanyar, but is not exclusive to them as a race. Glorfindel was golden-haired, remember?

Legolas seems to refer to himself as a Silvan Elf:

Silvan is actually an old word that has fallen from use (I think it was Anglo in origin, but can't be sure) that was a term for a woodland creature. So a Silvan Deer is a deer that lives in a wood and a Silvan Elf...well, you get the picture! *grins*