sequential hex color generator

import java.awt.*;
public class JunkRocket {
    public static void main(String[] args) {
       System.out.println("hello world, take lsd");
       int decmax=16777215;
       int dec=0;
       int declength=0;
       String ndec = Integer.toHexString(dec);
       //declength
       //1 = 1 = 1
       //2 = 10 = 16
       //3 = 100 = 256
       //4 = 1000 = 4096
       //5 = 10000 = 65536
       //6 = 100000 = 1048576
       while (dec < decmax)
       {
           dec = (dec+20000);

      if (dec<16)
      {
          declength = 1;
      }

      else if (dec < 256 && dec>16)
      {
          declength=2;
      }
      else if (dec < 4096 && dec > 256)
      {
          declength=3;
      }
      else if (dec < 65536 && dec > 4096)
      {
          declength=4;
      }
      else if (dec < 1048576 && dec > 65536)
      {
          declength=5;
      }
      else
      {
          declength=6;
      }
       switch (declength)

       {
           case 1:

           ndec = Integer.toHexString(dec);
               System.out.println(" ");
               System.out.print("<div style=\"color:#00000");
                 System.out.print(ndec);
            System.out.print(";\"><big><big><big><big><big><big><big>{{{1}}}</big></big></big></big></big></big></big></div>");
               break;
           case 2:
               ndec = Integer.toHexString(dec);
               System.out.println(" ");
               System.out.print("<div style=\"color:#0000");
                 System.out.print(ndec);
            System.out.print(";\"><big><big><big><big><big><big><big>{{{1}}}</big></big></big></big></big></big></big></div>");
               break;
           case 3:
                ndec =Integer.toHexString(dec);
               System.out.println(" ");
               System.out.print("<div style=\"color:#000");
                 System.out.print(ndec);
            System.out.print(";\"><big><big><big><big><big><big><big>{{{1}}}</big></big></big></big></big></big></big></div>");
               break;
           case 4:
               ndec= Integer.toHexString(dec);
               System.out.println(" ");
               System.out.print("<div style=\"color:#00");
                 System.out.print(ndec);
            System.out.print(";\"><big><big><big><big><big><big><big>{{{1}}}</big></big></big></big></big></big></big></div>");
               break;
           case 5:
               ndec= Integer.toHexString(dec);
               System.out.println(" ");
               System.out.print("<div style=\"color:#0");
                 System.out.print(ndec);
            System.out.print(";\"><big><big><big><big><big><big><big>{{{1}}}</big></big></big></big></big></big></big></div>");
               break;
           case 6:
               ndec= Integer.toHexString(dec);
               System.out.println(" ");
               System.out.print("<div style=\"color:#");
                 System.out.print(ndec);
            System.out.print(";\"><big><big><big><big><big><big><big>{{{1}}}</big></big></big></big></big></big></big></div>");
               break;





        }
    }
}