Wine red/Maroon/Crimson: Powerful words, strength, queen/king-like beauty and power, cursing. Wear when you want to put a bite into your words.
Poppy Red/Scarlet/Bright Reds: Love, playfulness, draw attention, courage. Enchant these colors for when you have to give a presentation, or for love spells.
Rose Pink/Lighter Shades: Friendship, Love, peace. Enchant for maybe going out with friends, setting a dispute, etc.
Peach: (My personal favorite) Use this color in beauty and confidence spells, or anything requiring some bravery and/or emotional strength.
Purples/Violet/You get the Idea: Love, astral realm, psychic abilities, intelligence. Ladies- if you are like me and deal with men who frequently claim you are less intelligent because you are a woman, enchant a purple color.
Reddish-Brown: deceit. Idk how or why you would use this but its a common color so.
Black: protection, the otherworld, litterally anything you want really.