Here you can find the source of toHtmlString(Color color)
public static String toHtmlString(Color color)
//package com.java2s; /*-------------------------------------------------------------------------+ | | | Copyright 2005-2011 The ConQAT Project | | | | Licensed under the Apache License, Version 2.0 (the "License"); | | you may not use this file except in compliance with the License. | | You may obtain a copy of the License at | | | | http://www.apache.org/licenses/LICENSE-2.0 | | | | Unless required by applicable law or agreed to in writing, software | | distributed under the License is distributed on an "AS IS" BASIS, | | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | | See the License for the specific language governing permissions and | | limitations under the License. | +-------------------------------------------------------------------------*/ import java.awt.Color; public class Main { /** Converts a color to a HTML color in the format #RRGGBB. */ public static String toHtmlString(Color color) { return String.format("#%06X", color.getRGB() & 0xffffff); }/*ww w. j av a 2 s .c om*/ }