RTEditor/src/main/java/com/onegravity/rteditor/converter/ConverterHtmlToSpanned.java
@SuppressLint("DefaultLocale")
    private static int getHtmlColor(String color) {
        Integer i = COLORS.get(color.toLowerCase());
        if (i != null) {
            return i;
        } else {
            try {
                return convertValueToInt(color, -1);
            } catch (NumberFormatException nfe) {
                return -1;
            }
        }
    }
@SuppressLint("DefaultLocale")
    private static int getHtmlColor(String color) {
        Integer i = COLORS.get(color.toLowerCase());
        if (i != null) {
            return i;
        } else {
            try {
                return convertValueToInt(color, -1);
            } catch (NumberFormatException nfe) {
                return -1;
            }
        }
    }
Converts an HTML color (named or numeric) to an integer RGB value.

@param color Non-null color string.
@return A color value, or {@code -1} if the color string could not be interpreted.