Black			0, 0, 0
75% gray		0.25, 0.25, 0.25
50% gray		0.5, 0.5, 0.5
25% gray		0.75, 0.75, 0.75
White			1, 1, 1
Dark red		0.5, 0, 0
Dark magenta	0.5, 0, 0.5
Red				1, 0, 0
Magenta			1, 0, 1
Pastel red		1, 0.5, 0.5
Dark green		0, 0.5, 0
Dakr yellow		0.5, 0.5, 0
Green			0, 1, 0
Yellow			1, 1, 0
Pastel green	0.5, 1, 0.5
Dark blue		0, 0, 0.5
Dark cyan		0, 0.5, 0.5
Blue			0, 0, 1
Cyan			0, 1, 1
Pastel blue		0.5, 0.5, 1
