Depending on what the colour is? Its the intent that is crucial here, The effects are only tempoarary, the colours do not stay but you can change and amend the state of each chakra. Filling each chakra with cooling and soothing ghreen will help to cure anger. Like with all chakra work start at the root, the base chakra and work your way up then when closing and finishing, start from the top, crown and work down.
Think how we feel if we wear the wrong colour, the wrong chade of clothes? What we wear affects our whole feeling for the day. It can give us confidence or make us feel depressed or bold or happy
Colour therapy is separate to chakras, but colour therapy can be used with many other modalities, crystal healingand reiki too.