Based on http://horstmann.com/sjsu/graphics/
**#UPDATE 30th November ** Added a couple of colours and in different gradients.
// Red Gradients
public static final Color RED = new Color(255, 0, 0);
public static final Color LIGHT_RED = new Color(255, 102, 102);
public static final Color DARK_RED = new Color(153, 0, 0);
// Green Gradients
public static final Color GREEN = new Color(0, 255, 0);
public static final Color LIGHT_GREEN = new Color(102, 255, 102);
public static final Color DARK_GREEN = new Color(0, 153, 0);
public static final Color LIME_GREEN = new Color(50, 205, 50);
public static final Color FOREST_GREEN = new Color(34, 139, 34);
// Blue Gradients
public static final Color BLUE = new Color(0, 0, 255);
public static final Color LIGHT_BLUE = new Color(102, 178, 255);
public static final Color DARK_BLUE = new Color(0, 0, 153);
public static final Color SKY_BLUE = new Color(135, 206, 235);
public static final Color ROYAL_BLUE = new Color(65, 105, 225);
public static final Color NAVY_BLUE = new Color(0, 0, 128);
// Yellow Gradients
public static final Color YELLOW = new Color(255, 255, 0);
public static final Color LIGHT_YELLOW = new Color(255, 255, 153);
public static final Color DARK_YELLOW = new Color(204, 204, 0);
public static final Color GOLD_YELLOW = new Color(255, 223, 0);
// Cyan Gradients
public static final Color CYAN = new Color(0, 255, 255);
public static final Color LIGHT_CYAN = new Color(153, 255, 255);
public static final Color DARK_CYAN = new Color(0, 153, 153);
// Magenta Gradients
public static final Color MAGENTA = new Color(255, 0, 255);
public static final Color LIGHT_MAGENTA = new Color(255, 153, 255);
public static final Color DARK_MAGENTA = new Color(153, 0, 153);
// Orange Gradients
public static final Color ORANGE = new Color(255, 165, 0);
public static final Color LIGHT_ORANGE = new Color(255, 200, 102);
public static final Color DARK_ORANGE = new Color(255, 140, 0);
// Purple Gradients
public static final Color PURPLE = new Color(128, 0, 128);
public static final Color LIGHT_PURPLE = new Color(186, 85, 211);
public static final Color DARK_PURPLE = new Color(75, 0, 130);
// Brown Gradients
public static final Color BROWN = new Color(165, 42, 42);
public static final Color LIGHT_BROWN = new Color(210, 180, 140);
public static final Color DARK_BROWN = new Color(101, 67, 33);
// Gray Gradients
public static final Color GRAY = new Color(128, 128, 128);
public static final Color LIGHT_GRAY = new Color(211, 211, 211);
public static final Color DARK_GRAY = new Color(64, 64, 64);
// Black and White
public static final Color BLACK = new Color(0, 0, 0);
public static final Color WHITE = new Color(255, 255, 255);