RGB is designed from the principle of color luminescence. MuMitemo yaLayman, Yayo Ruvara runosanganisa nzira yakafanana neye tsvuku, girini, uye yebhuruu mwenje. When their lights overlap each other, the colors are mixed, but the brightness is equal to The sum of the brightness of the two, the more mixed the higher the brightness, that is, additive mixing.