do Hybrid roses maintain their colour if grown from seed
No, hybrid anything doesn't come true from seed. Another issue is the rootstock. Many, not all, roses are grafted onto sturdier rootstock to help the plant perform well. You can try taking a cutting for same color but you still have the issue of rootstock. If you dig into the exact name of your rose, you should be able to find whether it is grafted or grows on its own roots.