Each of the Gods and Goddesses of various pantheons have their own candle colour preference. Here is a list of some of them.
AAH – Silver
ADITI – Blue
AGNI – Red
AMATERASU-O-MI-KAMI – Yellow and Gold
AMON – Green
ANAITIS – Green
ANU – White and Black
ANUBIS – Black
AODH – Red.
APHRODITE – Red and Pink
APPOLO – Gold and White
ARRIANRHOD – Silver and White
ARTEMIS – Silver and White
ASHERALI – Green, White and Silver
ASTARTE – Pink, Green, Red and Silver
ASTRAEA – White
ATHENA – Purple and White
ATTIS – Green
BAAL – Green
BACCHUS – Red and Purple
BALDER – Yellow and Gold
BAST – Red, Green and White
BENTEN – Pink
BRIGIT – Red and White
CE-AEHD – Green
CEARA – Green
CEARAS – Red
CENTEOTLE – Green
CERES – Green, Orange, Brown and Yellow
CERNUNNOS – Dark Green
CERRIDWEN – Green
CHERNOBOG – Red
CHLORIS – White
CHU_JUNG – Red
CYBELE – Green
DAGHDA – Green and Brown
DAZHBOG – Gold, yellow, and Orange-Red
DEMETER – Green and Orange
DEW – Green
DIANA – Silver and White
DIONYSUS – Red, Purple and Green
DURGA – Red
DYAUS – Blue
EA – Blue
EOSTRE – Green
EPONA – White
ERESHKGAL – Black
EROS – Red
ESMERALDA – Emerald Green
EXU – White and Black
FAUNUS – Green
FLORA – White and all Floral Colors
FORTUNA – Green, Gold and Silver
FREY – Green
FREYA – Green, Red and Black
FRIGGA – White
FRIJA – Brown
HADES – Black
HATHOR – Blue
HECATE – Black and Silver
HERA – Dark Brown
HESTIA – Red
HORUS – Royal Blue
INANNA – Red
ISHTAR – Red and Green
ISIS – Green
JANUS – White
KALI – Black
KHONS – Silver and White
KILYA – White
KUAN YIN – Green
KUPALA – Red
LOKI – Red
LUCINDA – Silver and White
LUGH – Yellow, Gold and Bronze
LUNA – White and Silver
LUPERCUS – Green
MAAT – White
MIN – White
MORRIGAN – Scarlet and Black
MUT – Green
MYLITTA – Green
NEMESIS – Red
NEPTUNE – Blue
NINHURSAG – Dark Brown
NJORD – Aquamarine
NUT – Royal Blue
NYX – Black
ODIN – Purple, Red and Black
OSIRIS – Green and Black
PAN – Green
PARVATI – White and Brown
PELE – Red and Orange
PERSEPHONE – Black
POMONA – Green
POSEIDON – Light Blue
PTAH – White
QUETZALCOATLE – Black
RA – Gold
RHIANNON – White
SATURN – Orange
SEKHMET – Crimson
SELENE – Silver and White
SET – Black
SHAMASH – Yellow
SIN – White
SVAROG – Red and Silver
SYLVANUS – Dark Green
TANE – Blue and Green
THANATOS – Black
THOR – Blue
THOTH – White, Silver and Purple
THUNOR – Dark Blue, Black and Green
TIWAZ – Brown and Green
TLAZOLTEOTL – Brown and Green
TRIPLE GODDESS – Green, Red and Black
URANUS – Blue
VENUS – Pink
VESTA – Red
WODEN – Red and Purple
XOCHIQUETZAL – White and all Floral Colors
YARILO – Green
ZEUS – Gold