Joseph's coat may not have been 'many colors'.
The definition is as follows:
From an unused root meaning to cover (compare H3802 to clothe); a shirt: - coat, garment, robe.
1) tunic, under-garment
1a) a long shirt-like garment usually of linen
The word 'many' is in italics, which means it was added by the translators.
From H6461 disperse or disappear; properly the palm (of the hand) or sole (of the foot), (compare H6447 to palm, spread out); by implication (plural) a long and sleeved tunic (perhaps simply a wide one; from the original sense of the root, that is, of many breadths): - (divers) colours.
1) flat (of the hand or foot), palm, sole
1a) of the tunic reaching to palms and soles
Joseph's coat was a ceremonial tunic that reached to the palms and soles.
The word for colours, as in colors of the rainbow, is not H6446 (used for Joseph's tunic).
Colors comes from several other words:
H2921 tala- to patch, be spotted, be colored
H5869 ayin- eye (to see color)
H6320 puk- paint, dye, black paint
H6448 tseba- to dip, dye, dyed by coloring fluid
H7553 riqmah- variegated, embroidered, mix colors by embroidery
If Joseph's tunic (coat) was of colors, then one of the above words would have been used.
Joseph was Jacobs son by Rebekah, whom was Joseph's most loved wife.
The Levites, sons of Aaron wore coats of fine linen. They were long shirt-like robes which extended to the palms and soles. The ceremonial robes worn by the priesthood.
The only other places colours (H6446) is used are:
The Septuagint records 'divers colours' as 'variegated'.
Webster's defines variegated as: Diversified in colors or external appearance.
Ammon was a son of David's who loved and longed for his sister, who was a virgin. A virgin that wore a garment of virginity, and likely variegated with embroidery. Not necessarily of colors. Ammon violated his sister.
Tamar was wearing a garment of virginity, which is usually represented by white.
Whether Joseph's coat was of colors or was a ceremonial tunic is merely a doubtful disputation not worthy of division among brethren.
The definitions and examples show that Joseph's and Tamar's tunics were not of colors and were ceremonial tunics.
The definitions and examples of actual colors are defined and used in other circumstances, but not in these.
Again, nothing to argue about either way.
The idea is to seek, search, study and find. The enemies of our race and of God have distorted, perverted and changed our history and heritage to keep us from truth. We must question all we have been taught in and by the world (society, “churches”) and examine for ourselves.