The used java code can be found below. It uses a HSLColor class which can be found here.
package customcolors;
import java.awt.Color;
import java.util.ArrayList;
import java.util.List;
public class CustomColors {
/**
* @param args
*/
public static void main(String[] args) {
int count = 24;
List<Color> colors = new ArrayList<Color>();
Color baseColor = new Color(0x798e30);
HSLColor hslColor = new HSLColor(baseColor);
float baseHue = hslColor.getHue();
colors.add(baseColor);
float step = (360 / count);
for (int i = 1; i < count; ++i) {
float nextHue = (float) (baseHue + step * i) % 360;
HSLColor nextColor = new HSLColor(nextHue,
hslColor.getSaturation(), hslColor.getLuminance());
colors.add(nextColor.getRGB());
}
StringBuffer colorBuffer = new StringBuffer();
for (Color tempColor : colors) {
String hex = Integer.toHexString(tempColor.getRGB()).substring(2);
colorBuffer.append(hex);
colorBuffer.append(",");
}
String colorString = colorBuffer.toString();
colorString = colorString.substring(0, colorString.length() - 1);
StringBuffer dataBuffer = new StringBuffer();
for (int i = 1; i < count; ++i) {
dataBuffer.append("10");
dataBuffer.append(",");
}
String dataString = dataBuffer.toString();
dataString = dataString.substring(0, dataString.length() - 1);
System.out.print("http://chart.apis.google.com/chart?chs=400x400&cht=p&chco=" + colorString + "&chd=t:" + dataString);
}
}
Following chart colors are generated:
