SCRIPTURAL MEANING OF COLOURS
RED - blood and atonement   Leviticus 17 v11, Hebrews 9 v12-14

BLUE - Heaven and heavenly grace   Exodus 24 v10

PURPLE - royalty  Judges 8 v26, Mark 15 v17-18

WHITE - purity and holiness  Psalm 51 v7, Matthew 17 v2, Revelation 3 v4

SILVER - redemption  Numbers 18 v15-16

GOLD - divinity and Gods Glory  Exodus 37, Exodus 40 v 34-35, Revelation 1 v13-14

BRONZE / BRASS - judgement  Exodus 27 v1-3, Exodus 30 v17-21

YELLOW - celebration and joy  Isaiah 51 v11, Isaiah 61 v3, Hebrews 1 v9

GREEN - new life  Psalm 92 v12-14, Hosea 14 v8

BROWN / GREY - repentance and humility  Esther 4 v3, Daniel 9 v3-5

ORANGE / YELLOW / RED - fire and the Holy Spirit  Acts 2 v3

PLUM - richness, abundance, infilling of the Holy Spirit  Hosea 2 v22, Joel 2 v24

BLACK - sin and death  Psalm 23 v4, Ephesians 5 v11
This list is not exhaustive, but is the product of personal prayer and study of this subject. I may be able to add to this in the future.