"(...) one and the same color evokes innumerable readings.(...)"
"If one says "Red" (the name of a color) and there are 50 people listening, it can be expected that there will be 50 reds in their minds. And one can be sure that all these reds will be very different."
"(...) we almost never (that is, without special advices) see a single color unconnected and unrelated to other colors. Colors present themselves in continuous flux, constantly related to changing neighbors and changing conditions. (...)"
Josef Albers in "Interaction of Color"