Cannon Facts:

Eye color: silvery grey
Hair color: dirty blonde
Height: unknown

Patronus: hare
Hares are sometimes described as: shy, fast, protective

Wand(s):
Unknown

Birthday: February 13th, 1981

Skills: dueling, charms, non-verbal Magic, care of magical creatures, creativity, leadership skills

Life after Hogwarts:

Spouse: Rolf Scamander
Children: Lysander and Lorcan Scamander (between 2008-2014)
Occupation: Magizoologist

Popular Headcannons:

pan!luna
ace!luna
lunaXneville
lunaXginny
lunaXdraco
lunaXharry

Sources:
Harry Potter wiki
Mood board from tumblr user crookshahnks