Java Color Codes

Java programming language allows us to create different types of applications like windows application or web application. The user interface is an important factor while developing an application. The GUI of the Java application can be made interactive using different colors available in Java programming.

Java Color Constants

The color constants in Java are values that cannot be changed and can be used with different Java programs.

The following table shows the color constants available in the Java programming. The all-capital version depicts a constant value. But lowercase version also works fine.

Java Color Constants
BLACK	black
BLUE	blue
CYAN	cyan
DARK_GRAY	darkGray
GRAY	gray
GREEN	green
LIGHT_GRAY	lightGray
MAGENTA	magenta
ORANGE	orange
PINK	pink
RED	red
WHITE	white
YELLOW	yellow

Java Color Codes

The basic colors of color system are red, green, and blue. Java provides the Color class constructor with different RGB color codes as arguments. Many developer tools are available that helps in picking up the correct RGB value.

The following table shows some color code combinations using different RGB values.

Color	RGB value
Black	0-0-0
Very light red	255-102-102
Light red	255-51-51
Red	255-0-0
Dark red	204-0-0
Very dark red	153-0-0
Very light blue	51-204-255
Light blue	51-153-255
Blue	0-0-255
Dark blue	0-0-204
Very dark blue	0-0-153
Very light green	102-255-102
Light green	0-255-51
Green	0-204-0
Dark green	0-153-0
Very dark green	0-102-0
White	255-255-255

Java AWT Color Class Program

Java Abstract Window Toolkit is an API for developing GUI based Java applications. Let's create a Java program and use the Color class.

ColorExample.java

import java.awt.*;
import javax.swing.*;

class ColorExample extends JFrame 
{
	ColorExample()
	{
		super("color");

		/* create an instance of Color class. */
		/* RGB value 0, 0, 204 for Blue color. */
		Color c1 = new Color(0, 0, 204);

		/* create an instance of JPanel. */
		JPanel p = new JPanel();

		/* Set the background of the JPanel to the specified Color. */
		p.setBackground(c1);

		setSize(200, 200);
		add(p);
		show();
	}

	/* Driver Code */
	public static void main(String args[])
	{
		ColorExample c = new ColorExample();
	}
}

Output:

In the above code, an instance of a JPanel p is created. The Color class object c1 is created using the RGB values (0, 0, 204) passed as an argument to the constructor. The c1 color object is assigned as the background color for the JPanel p.

Java Color Constants Program

ColorConstExample.java

import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;

public class ColorConstExample extends Frame 
{
   /* Driver Code */    
   public ColorConstExample()
   {
      super("Color Code Example");
      prepareGUI();
   }

   public static void main(String[] args)
   {
      ColorConstExample obj = new ColorConstExample();  
      obj.setVisible(true);
   }

   private void prepareGUI()
   {
      setSize(400,400);
      setBackground(Color.black);
      addWindowListener(new WindowAdapter() 
      {
         public void windowClosing(WindowEvent windowEvent)
         {
            System.exit(0);
         }        
      }); 
   }    

   public void paint(Graphics g) 
   {
      Graphics2D g2 = (Graphics2D)g;        
      Font plainFont = new Font("Serif", Font.PLAIN, 24);        
      g2.setFont(plainFont);
      /* Color Constant */
      g2.setColor(Color.cyan);
      g2.drawString("Color Code Example", 50, 70); 
      g2.setColor(Color.BLUE);
      g2.drawString("This is written in Blue color", 50, 120);  
   }
}

Output: