colour harmonies, colour ways, and colour schemes are all different terms for the same thing. the most closely associated colour way is an analogous colour scheme. these are colours that are directly next to each other in the colour wheel.
Vanishing boundaries, if two hues are very similar to each other in value and saturation, they will have a dramatic visual impact and interaction with each other.
Mark Rothko purposely created paintings that used the concept of vanishing boundaries as a key element in some of his work. To accompany my research i will be developing and experimenting with different mediums to recreate my version of colour theories.