White: Is the purest complete color and the balance of all colors. Associated with purity, consecration, meditation, divination, exorcism, the full moon, healing, peace, spiritual strength. It is associated with the Moon and Pisces, Monday, and the sign cancer. Crown chakra and the Brain, pineal gland, semen is body areas it is associated with. In a pinch, you can use white to substitute for other colors.
Black: Is the absence of all colors. Protection, reversing, dissolving negative energies destroying evil or negativity, banishing, binding, repelling. unlocking when stuck, banishing, opens up the deeper levels of the unconscious; use in rituals to induce a deep meditation state, hex or curse breaking. It is associated with Samhain, Saturn, Saturday, The Crone, and Scorpio & Capricorn. Teeth and bones is the body area it is associated with.
Grey: A neutral color for pondering complex issues during meditation; in magic, this color often sparks confusion; it also negates or neutralizes a negative influence. It is associated with the Moon, Virgo, Monday, and Athena and Medusa.
Silver: Removes negativity and encourages stability, and purity. Assists in developing psychic abilities and attracts the influence of the Mother Goddess. It is associated with the Moon, Gemini, Monday, the goddess, Artemis, and other moon goddesses.
Gold: Encourages understanding and attracts the powers of cosmic influences, for fast luck or money, or in rituals needing solar energy. It is associated with the Sun, Sunday, Leo, God, Apollo and other Sun Gods.
Brown: Associated with security, friendship, animal magic, nature magic, generosity, fruitfulness, new beginnings, harvest, health of pets & livestock, endurance, grounding and centering, strengthening, sound decision making, improved concentration, focus, telepathy, finding lost things, improving study and knowledge, and increase financial success. Associations are Earth, Moon (tan browns), Venus (all), Saturn (dark browns), Monday, Friday, Saturday, Gaia and Earth Goddess, Capricorn, and Mabon.
Yellow: Associated with healing, joy, friendship, charm, comfort, increase productivity, remove negative thinking, increase creativity, inventiveness, prosperity, self-esteem, beauty, life, humility, intellect, activity, creativity, and unity. Brings the power of concentration and imagination to a ritual. Use in rituals where you wish to gain another’s confidence or persuade someone, or in rituals that require solar energy. Associations include solar plexus chakra, lower back, spine, gall bladder, pancreas, liver, spleen, digestion, Air, Mercury, Libra, Taurus, Leo, and Wednesday.
Orange: Associated with creativity, assertiveness, ambition, career matters and the law, self-confidence. relieving depression and feelings of abandonment, increasing opportunities, happiness, encouragement, adaptability, stimulation, attraction, plenty, kindness mental alertness, breaking down barriers, material gain, kindness, sealing a spell, harvest, strength, dominance, legal matters Associations are sacral chakra, pelvis, kidneys, uterus, bladder, lymph, sperm, adrenaline, digestion, fire, Sun, Mars, Mercury, Leo, Sagittarius, Brigid, Candlemas, Sunday, Tuesday, and Wednesday.
Pink: Associated with romance, familial or emotional love (versus passion or sexual which is more associated with red), personal success, self-love, harmony within oneself, friendship, calming, harmony, passion, partnerships, getting a move on, physical energy, action, exercise, surgery, buying, selling & adopting animals, gardening, woodworking, new beginnings, honor, morality, emotions, femininity, breast cancer, homosexuality, compassion, relaxation, infants friendship; standard color for rituals to draw affections. honor, service, healing, affections, unselfish emotions, spiritual healing, and to banishing hatred. Associations Muscular systems, Venus influencing Mars, Rose Quartz, and Friday.
Red: Associated with passion, fire, courage, strength, power, joy, renewal, energy, health, motivation, desire, ambition, leadership, self-esteem, business deals, combat, confrontation, buying & selling, mechanical things, repairs, blood and hunting. Associations include the element Fire, Yule and Tuesday, Aries, Scorpio, Mars influencing Saturn, Root chakra, bones, Teeth, nails, colon, prostate, rectum, blood.
Magenta: Is a combination of red and violet that oscillates on a high frequency it energizes rituals where immediate action and high levels of power or spiritual healing are required.
Purple: Associated with power, success, idealism, psychic manifestations; ideals for rituals to secure ambitions, independence, clairvoyance, relief of emotional hurt, spiritual protection, heal wounded pride, spirituality, wisdom, increasing psychic powers, meditation, justice, forgiveness, humility, the occult, hidden forces, secret dealings, memory, intelligence, communication, intelligence, education, correspondences, messages, students, merchants, editing, writing, advertising, contracts, kinship, ambition, progress, visiting friends, and astrology. Associations are Mercury, Saturn, Capricorn, Jupiter, Gemini, Sagittarius, Thursday, the Third Eye or Brow chakra, face, nervous system, upper respiratory system, bones, eyes, ears, pituitary gland, emotions
Indigo: Color of inertia; stops situations or people. Commonly used in rituals that require deep meditation or in rituals that demand Saturn energy.
Blue: Associations include increasing wisdom, wealth, joy, opportunity, patience, peace, truth, loyalty, meditation, introspection, insight, happiness, fidelity, remove confusion, the ocean, elevation, calming, long distance travel, higher education, political power, social standing, dealing with foreign cultures/countries, religion, philosophy, forecasting, broadcasting, publicity, expansion, luck, growth, sports, horses, legal matters, doctors, guardians, merchants, police officers, psychologists, charity, self-improvement, research, studying, and reading. Associations include the element water Jupiter, Moon, Virgo, Capricorn, Aquarius, Pisces, Thursday, Friday, and Saturday, the Throat chakra, neck, throat, thyroid, lungs, ears, and mind.
Royal Blue: Promotes laughter and fun; color or loyalty; use to attract Jupiter energy.
Light Blue: A Spiritual color. Used in devotional or inspirational meditations. Brings peace and tranquility to the home. Exudes Aquarius energy.
Green: Encourages prosperity, fertility, success; stimulates rituals for good luck, money, harmony, and rejuvenation. Good for increasing love and trust, faeries, general healing, wellness, transformation, new beginnings, prosperity, money, career, employment, hope, immortality, rebirth, garden magic, herbal magic, fertility, luck, courage, change, peace, harmony, relationship success, beauty, soul mates, artistic ability, affection, partnerships, alliances, grace, luxury, social activity, marriage, decorating, cosmetics, gifts, income, gardening, gardeners, architects, artists, cosmetologists, chiropractors, dancers, engineers, entertainers, fashion, models, designers, music, painting, poetry, courtship, dating, household improvements, planning events, and shopping. Associations include Element Earth Venus, Mercury, Aquarius, Cancer, Spring Equinox, Beltane, Wednesday, Heart chakra, Upper back, spine, shoulders, breasts, heart, lungs, respiratory system, and circulatory system
Emerald Green: Important component in Venusian rituals. Used to attract love, social delights, and fertility.
Dark Green: A color of ambition, greed, and jealousy. Can also be used to counteracts these influences in a ritual.
References
Witchepedia:Table of Color Correspondence
Witchepedia: The Magick of Colors
Everything Under the Moon: Color Chart for Witches
Skyscript: The Color of Astrology
Practical Color Magick by Raymond Buckland