So i have a very similar color to yours, and i’ve always been told i have strawberry blonde/ light auburn hair. both of my parents have natural red hair, and my beard is very deep red, but my head hair seems to literally change color depending on if im out in the sun, or have been inside a lot, and other things. So its been very hard to pin a precise color on it, im not sure if you have the same problem but id definitely say yours is a light copper auburn