CECOLOR
Assigns a color to new entities without changing the color of existing entities.
Type: String
Saved: In the drawing file
Range: "BYLAYER", "BYBLOCK", "RED", "YELLOW", "GREEN", "BLUE", CYAN", "MAGENTA", "WHITE", "0" through "256", "RGB:000,000,000" through "RGB:255,255,255" (for True Colors)
Default: "BYLAYER"