Magickal Colors
Red: love, lust, strangth, power, passion, courage, energy

Blue: healing, meditation, forgiveness, peace, dreams

Green: healing, money, growth, luck, youth, employment, life, beauty, firtility

Yellow: learning, communication, divination, psychic powers, mental powers, wisdom, charm, persuasion

Pink: emotional love, friendship, affection, harmony

Turquoise: awareness, meditation, moon, crativity

Rose: self love, enhancing relationships

Orange: srength, authority, attraction, joy, legal matters, success, spells to stimulate energy

Purple: spiritual power, exorcism, psychic awareness, third eye, wisdom, healing, independance and household protection

Gold: sun, financial matters, prosperity, male energy, rituals to honor solar deities

Silver Blue: deep wisdom, psychic awareness

Silver: moon, female energy, removing negativity, attract the influence of the goddess

Black: absorption and destruction of negative energy, banish evil,uncrossing rituals and spells

White: peace, purity, sincerity, protection, healing, exorcism, truth

Peach: gentle strangth, joy

Grey: neutralize negative influences

Brown: locate lost objects and improve powers of concentraition and telepathy, protection of familiars and household pets.
Color is use a lot in Magick.  Especially if you are using candles in your spells.   Before casting spells or performing any kind of magick, the color of candle, clothing, etc... should be chosen carfully according to your purpose, for each color possesses a different energy vibration and attracts cirtain influences
Even the paper you write your spell on can be the color associated with your spell, I always use white to be on the safe side.  The color of ink that you use can also strengthen your spell.