(0,0,0) maps to (0,0,0)
(0,0,1) maps to (0,0,0)
(100,0,50) maps to (191,0,0)
(255,255,255) maps to (255,255,255)
(255,254,253) maps to (255,255,255)
(12,91,27) maps to (0,0,0)
(207,32,37) maps to (191,0,0)
(244,199,3) maps to (191,191,0)
(127,128,255) maps to (192,192,192)
(5,7,240) maps to (0,0,255)
(5,7,140) maps to (0,0,191)
(12,13,14) maps to (0,0,0)
(5,230,7) maps to (0,255,0)
(7,180,5) maps to (0,191,0)
(150,150,150) maps to (128,128,128)
(255,0,191) maps to (191,0,191)