EasyHexColors.java

/* Prefer using adventure or something, but if you need something tiny.. */
public static final Pattern HEX_PATTERN = Pattern.compile("&(#[A-Fa-f0-9]{6})");

public static String color(String string) {
    return string == null ? null : replaceHex(ChatColor.translateAlternateColorCodes('&', string));
}

public static String replaceHex(String str) {
    Matcher matcher = HEX_PATTERN.matcher(str);
    while (matcher.find()) {
        str = str.replace(matcher.group(0), ChatColor.of(matcher.group(1)).toString());
    }
    return str;
}