Which Phenols give the colours blue, green or violet in the neutral FeCl3 test?
The colour may vary from blue, green or even red depending upon the
  nature of the phenol.(Source)



o,m,p-cresols and resorcinol gives violet or blue coloration. (source)
beta-naphthol gives green coloration. (Source)
alpha-naphthol gives pink coloration. (")