Help with lighting white walls

Hello everyone, I have been trying to bake a white interior wall in Cycles but after testing many different combinations of power/distance the end result is always more grey than actually white. Looking at the picture (200W/2mts using a point light) can anyone tell me what i could do different here or if there is a add-on to help me achieve a better result? I need to export the model into GLTF.

You can reduce roughness or use some actual texture, but the wall will never look ideally white.