colour contrast

noun

psychol the change in the appearance of a colour surrounded by another colour; for example, grey looks bluish if surrounded by yellow

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for colour contrast

Historical Examples of colour contrast

The curious phenomena of colour-contrast illustrate momentary alterations of sensibility.
Illusions
James Sully