src/main/java/com/bazaarvoice/jless/parser/Parser.java
Rule RGB() {
        return FirstOf(
                Sequence(Hex(), Hex(), Hex(), Hex(), Hex(), Hex()),
                Sequence(Hex(), Hex(), Hex())
        );
    }
Rule RGB() {
        return FirstOf(
                Sequence(Hex(), Hex(), Hex(), Hex(), Hex(), Hex()),
                Sequence(Hex(), Hex(), Hex())
        );
    }
Rule RGB ( ) { return FirstOf ( Sequence ( Hex ( ) , Hex ( ) , Hex ( ) , Hex ( ) , Hex ( ) , Hex ( ) ) , Sequence ( Hex ( ) , Hex ( ) , Hex ( ) ) ) ; }
Ex: 0099dd / 09d
Ex : 0099dd / 09d