frank lloyd wright can be considered part of American Arts and Crafts style but his translation was different and evolved into a modern aesthetic. It spanned a number of design aesthetics from AAC to International Style and biomorphic modernism. the so-called “prairie houses” are examples of his organic approach to architecture. he believed that building should evolve naturally from its surroundings. for that he emphasized horizontals rather than verticals and blurred the boundaries between interior and exterior spaces. he used a palette of understated colors drawn from nature and the surrounding landscape. he used contrasts of tone and texture. stained glasses with geometric shapes for windows and lighting fixtures were the only strong colors in these spaces.
at fallingwater he used warm shade of red, brown, green and yellow inspired from the autumn colors. “the cherokee red” was his favorite color and the most famous color of the fallingwater.