Mary: Oh! how pretty -- a silk headboard!

Maybe this will help

https://knottooshabby.net/2017/10/painting-upholstery/

It would be tricky to paint on silk not impossible but tricky, but I would use a latex paint and try on an inconspicuous section first.

https://www.youtube.com/watch?v=zNnjxfdDEfw

Here is how to paint a headboard with chalk paint: https://www.blesserhouse.com/beginners-guide-to-painting-upholstery/

I hope this helps:

https://pin.it/ypp4re4xah7xdv

Real silk will take a lot of different kinds of paint.

Polyester “silk” will not take water colors paint nor tempra paint unless it has acrylic added to it.

I also wouldn’t use oil-based paints on it, unless you can try a test sample to see if it “melts” the fibers.

https://www.hometalk.com/43451299/painted-fabric-headboard-bright-pink-to-calm-gray

Painted Fabric Headboard Bright Pink to Calm Gray

Hi Mary, here are a few items I found, hope they help you out, this first link tells what type of paint to use

https://www.wikihow.com/Paint-on-Silk

Here is a spray paint video

https://www.youtube.com/watch?v=zNnjxfdDEfw

Chalk paint on fabric

https://www.youtube.com/watch?v=0nz-45ch3o4

Good luck!