SETCOLOR

Syntax: SETCOLOR intRedExpression, intGreenExpression, intBlueExpression

Causes the specified RGB colour to be used until the next SETCOLOR command is issued. red, green and blue are all integer operands that should be between 0 and 255 inclusive. You should probably check to see if the environment has a color screen by checking the result from the ISCOLOR() function. If the environment doesn't support colour then GREY values should be specified using equal values for the red, green and blue components.