Here's some colour definitions for the bag itself and if you wish to light a candle for or with your friend this may help:
Black: Absorbs and removes anything; reversing, uncrossing, binding negative forces, protection, releasing, breaks up blockages, and un-sticks stagnant situations. Black is also used to create confusion and discord among your enemies or repel dark magic and negative thought forms. This colour is one of the most powerful available. However, be careful how you use it. If you use black for selfish, evil purposes, the energy can backlash upon you.
Blue: The uses of this colour depend upon the depth of its hue. Light blue is for truth, inspiration, wisdom, protection, understanding, good health, happiness, inner peace, fidelity, patience, harmony in the home, and contacting the Higher Self. Royal blue is for happiness, loyalty, group success, occult power, and expansion. Use royal blue with caution.
Brown: This colour can attract money and financial success and influence Earth elementals. It is also helpful for concentration, balance, ESP, intuition, study, to fulfil basic material needs, ground and centre, and to communicate with Nature spirits. This colour is powerful when used in times of financial crises.
Gold: Gold helps with great fortune, intuition, understanding, divination, fast luck (if circumstances are out of your control), and financial benefits. It attracts higher influences, money, knowledge, and happiness. It is primarily associated with male deity powers.
Green: This colour is associated with abundance, fertility, good fortune, generosity, material gain, wealth, success, renewal, marriage, balance, healing, and communication with Nature spirits. It can also help give a fresh outlook on life or bring balance to an unstable situation.
Indigo: This shade is a Saturn colour of such a purplish-blue that it is almost black. It is useful for meditation, and it neutralizes another's magic, balances out karma, and stops another's actions. It is also used to stop gossip, lies, or undesirable competition.
Magenta: A very high vibration frequency that tends to make things happen fast, this hue is usually burned with other candles. Burned alone, it is for quick changes, spiritual healing, and exorcism. This colour is a very dark but clear red with a deep purple tint to it, dark cranberry colour. This colour can be very difficult to find.
Orange: This vibrant colour helps with adaptability, encouragement, stimulation, attraction, sudden changes, prosperity, creativity, enthusiasm, success, energy and stamina, and mental agility. It also discourages laziness, helps to gain control, draws good things, and changes luck. As this is a very powerful colour, be certain you are willing to face major changes if you use it.
Pink: Associated with the purest form of true love, friendship, affection, romance, spiritual awakening and healing, honour, family love, and banishing hatred, this colour can also banish depression and negativity.
Purple: This shade helps with success, idealism, higher psychic ability, wisdom, progress, protection, honours, spirit contact, breaking bad luck, driving away evil, divination, greater magical knowledge, spiritual protection and healing, removing jinxes and hexes, success in court cases, business success, and influencing people who have power and the energies are difficult to handle.
Red: Associated with energy, strength, sexual potency, physical desire, passionate love, courage, will power, and good health, this colour is also used to protect against psychic attack or conquer fear or laziness.
Silver: Silver aids with victory, stability, helps with meditation, develops psychic abilities, removes negative powers, neutralizes any situation, and repels destructive forces. It is primarily associated with female deity powers.
White: This is used for spirituality and greater attainments in life; purity, truth, sincerity, wholeness, power of a higher nature, contacting spirit helpers, balancing the aura, confusing enemies, helping with pregnancy and birth, raising the vibrations, and destroying destructive energies. Whenever in doubt about a candle colour, use white. It is a highly balanced spiritual hue.
Yellow: This brilliant colour aids with intellect, imagination, power of the mind, creativity, confidence, gentle persuasion, attraction, concentration, inspiration, mental clarity, knowledge, commerce, and medicine, counselling, and healing