[Matiz](http://pt.wikipedia.org/wiki/Matiz_%28cor%29) (Hue) != [Matriz](http://pt.wikipedia.org/wiki/Matriz_%28matem%C3%A1tica%29) (Matrix)
Could also be translated to 'Cor' (Color) but I believe 'Matiz' is more appropriate because Color is the result of the 3 items.