These are the different colors/metals used for the days of the week on which you might perform these specific spells.
Sunday Sun - Yellow, Gold, Orange Health, Success, Career, Goals, Ambition, Personal Finances, Advancement, Drama, Fun, Authority Figures, Law, Fairs, Crops, Totem Animals, Volunteer, and Civic Services, Promotion, The God, Men's Mysteries, Children, Buying, Selling, Speculating.
Monday Moon - White, Silver,Gray, Pearl, Psychic Pursuits, Psychology, Dreams/Astral Travel, Imagination, Women's Mysteries, Reincarnation, Short Trips, Women, Children, The Public, Domestic Concerns, Emotions, Fluids, Magick, Spirituality, Nursing, All things pertaining to Water and Bodies of Water, Antiques, Trip Planning, Household Activities, Initiation, Astrology, New-Age Pursuits, Archetypes, Totem Animals, Shape shifting, Religious Experience.
Tuesday Mars - Red, Pink, Orange, Passion, Partnerships, Courage, Swift Movement, Action, Energy, Strife, Aggression, Sex, Physical Energy, Sports, Muscular Activity, Guns, Tools, Metals, Cutting, Surgery, Police, Soldiers, Combat, Confrontation, Business, Buying and Selling Animals, Mechanical Things, Repair, Gardening, Woodworking, Hunting, Beginnings.
Wednesday Mercury - Purple, Magenta, Silver Wisdom, Healing, Communication, Intelligence, Memory, Education, Correspondence, Phone Calls, Computers, Messages, Students, Merchants, Editing, Writing, Advertising, Signing Contracts, Siblings, Neighbors, Kin, Accounting, Clerks, Critics, Music, Editors, Journalists, Visual Arts, hiring Employees, Learning Languages, Placing Ads, Telephone Calls, Visiting Friends, Legal Appointments, Astrology.
Thursday Jupiter - Blue, Metallic Colors, Business, Logic, Gambling, Social Matters, Political Power, Material Wealth, Publishing, College Education, Long Distance Travel, Foreign Interests, Religion, Philosophy, Forecasting, Broadcasting, Publicity, Expansion, Luck, Growth, Sports, Horses, The Law, Doctors, Guardians, Merchants, Psychologists, Charity, Correspondence Courses, Self Improvement, Researching, Reading, Studying.
Friday Venus - Green, Pink, White, Romantic Love, Friendships, Beauty, Soul Mates, Artistic Ability, Harmony, Affection, Relationships, Partners, Alliances, Grace, Beauty, Luxury, Social Activity, Marriage, Decorating, Cosmetics, Gifts, Income, Growth, Gardening, Architects, Artists, Beauticians, Chiropractors, Dancers, Designers, Engineers, Entertainers, Fashion, Music, Painting, Poetry, Courtship, Dating, Decorating Homes, Household Improvements, Planning Parties, Shopping.
Saturday Saturn - Black, Gray, Red, White, Binding, Protection, Neutralization, Karma, Death, Manifestation, Structure, Reality, The Laws of Society, Limits, Obstacles, Tests, Hard Work, Endurance, Real Estate, Dentists, Bones, Teeth, Farm Workers, Sacrifice, Separation, Stalkers, Murderers, Criminals in General, Civil Servants, Justice, Math, Plumbing, Real Estate, Wills, Debts, Financing, Joint Money Matters, Discovery, Transformation, Death, Relations with Older People.
Information From Silver RavenWolf's "To Stir a Magick Cauldron"