| FreeMat
    | 
Section: Handle-Based Graphics
There are a number of ways of specifying a color value for a color-based property. Examples include line colors, marker colors, and the like. One option is to specify color as an RGB triplet
set(h,'color',[r,g,b])
 where r,g,b are between @[0,1] Alternately, you can use color names to specify a color. 
'none' - No color.  'y','yellow' - The color @[1,1,0]@ in RGB space.  'm','magenta' - The color @[1,0,1]@ in RGB space.  'c','cyan' - The color @[0,1,1]@ in RGB space.  'r','red' - The color @[1,0,0]@ in RGB space.  'g','green' - The color @[0,1,0]@ in RGB space.  'b','blue' - The color @[0,0,1]@ in RGB space.  'w','white' - The color @[1,1,1]@ in RGB space.  'k','black' - The color @[0,0,0]@ in RGB space.