Rustoleum makes a High Heat spray paint. It does come in several colors but I do not believe there is an amber color. It can be found at any local big box home improvement store like Menards, Home Depot or Lowes.
Hi Teresa, I have seen high heat paints in the auto parts store in many colors. You might give them a call and see if they carry what you need.
Try Home Depot maybe paint used for stoves or ovens or barbaques if not there try a place that sells hearths coal and wood stoves for the paint or try e bay
If you are the Teresa that was asking about painting light bulbs amber why not buy smart light bulbs that allow you to change the color? You can change the depth of color to anything you want. https://www.amazon.com/Konxie-Compatible-Assistant-Required-Sunrise/dp/B07H28N7TS
I got one for Christmas!