What is the next lighter shade of Clairol haircolor after light brown?

I am getting gray hairs in my bangs and in front of my ears. The rest of my hair is medium brown with something I find interesting: on the right side I have hair that is copper. No; not the metal , the color. And it shines. I think this is one reason my daughter is a redhead. Anyway, I’m thinking of going much lighter than medium brown just for fun and to see how it looks. Does anyone know the color that is one shade lighter than light brown? Not sure if they even sell light brown in Clairol. Thank you.