Java How to get Color from RGB value in JAVA

[yooyo]

Is there any way to get color from RGB value?

for example

If I give some random RGB value like r=221 g=255 b=123 then how do I get the color associated this RGB value?



Thanks in advance.

 

[sas3]

Here is a site that list the values.
hope it helps.

http://cloford.com/resources/colours/500col.htm

 

[mjsd]

if you just want to check what's the color looks like given a set of rgb in decimal, you can quickly check it using simple program like MS Paint.
Go to custom color and input the rgb values into the appropriate box, and you will see what that color looks like. It is quick too!

If they are in Hex, convert them into decimal first. most calculators can do that for you.

 

[Hurkyl]

Did you check the constructors for the Color class?

 

[ChrisLeslie]

This will let you see what various RGB's look like:

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

public class RGB
{
public static void main(String[] args)
{
JFrame frame = new JFrame("RGB");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
RGBpanel panel = new RGBpanel();
frame.getContentPane().add(panel);
frame.pack();
frame.setVisible(true);
}
}

class RGBpanel extends JPanel
{
public RGBpanel()
{
setPreferredSize(new Dimension(300,300));
int red = Integer.parseInt(JOptionPane.showInputDialog("Enter red value"));
int green = Integer.parseInt(JOptionPane.showInputDialog("Enter green value"));
int blue = Integer.parseInt(JOptionPane.showInputDialog("Enter blue value"));
Color colr = new Color(red,green,blue);
setBackground(colr);
}
}

 

[yooyo]

oh right.. I was looking for the method,
the Color has a constructor which is
Color(int r, int g, int b)
Creates an opaque sRGB color with the specified red, green, and blue values in the range (0 - 255).

another question is how do I control the image transparency?

 

[TenaliRaman]

Color Class in Java
-------------------------------------------------------------------------
Color

public Color(float r,
float g,
float b,
float a)

Creates an sRGB color with the specified red, green, blue, and alpha values in the range (0.0 - 1.0). The actual color used in rendering depends on finding the best match given the color space available for a particular output device.

Parameters:
r - the red component
g - the green component
b - the blue component
a - the alpha component
-------------------------------------------------------------------------
Alpha controls image transparency

-- AI

 

[hira_rose]

hello,
i want to learn from the basics of java script language
thank you very much if you help me out
Hira_rose