Hi @Rena2329,
Welcome to the Bunnings Workshop community, it is fantastic to have you with us.
If you do not have any paint in the same colour as the wall, you'll need to remove a section of paint around the size of a 50c piece so you can take it in store with you to get colour matched. If you still have the paint from the hook, you might be able to use this, but it looks fairly small, so I can't guarantee it would be large enough. You will be fixing this damage anyway, so do not stress about causing a bit more damage; it might, unfortunately, be a necessary evil in this situation. You can use a utility knife to cut out a small section of the paint if required. Just make sure you wear gloves and long protective clothing to reduce the risk of lacerations when working with knives.
Take this paint sample in store with you and have the team at the Paint Desk colour match it and mix up a small sample pot in the same colour. You should also pick up a small tub of British Paints 4 In 1 Prep Primer Sealer Undercoat and a Paint Partner Mini Roller Kit while you are there.
When you are home, apply your primer to the damaged area. This will serve two purposes: levelling out the slight height difference where the paint was removed and priming the chip, so the paint sticks properly.
Once the primer has dried, apply your colour-matched paint, blending it in with the surrounding your roller.
Let me know what you think, and if you have further questions, please don't hesitate to ask.
Jacob
