Analogues
In colour therapy, the mid band of a given colour is considered to be a 'true' colour... the clearest and purest form of the energy... these are strong bright colours, like daffodil yellow, or royal blue. The higher analogues are where the true colour is speeded in vibration by the addition of more light... often (though not always) this lightens the colour... but it always gives it more depth and tonal quality than the true colour.