I’ve spent some time looking at Goethe‘s thoughts on colour value and found his theories of great help in colour placement. He stated that white and warm hues have greater strength than black and cool hues. For example, orange is twice as strong as blue and therefore an artist should use twice as much blue as orange in order to balance the relative strengths.
Balancing colours often comes instinctively to us so when you look around at images and patterns you find pleasing, you will often find they show colour harmony.
Goethe also paid particular attention to complementary colours – balancing colours to achieve a visual harmony. Our brains constantly seek colour balance so here the orange ladder (a small proportion relative to the blue of the sky) is satisfying our need to see blues’s complementary, orange.