So I'm testing out more of Blender's Grease Pencil for animation, but I'm noticing that the colours I draw in the Viewpoint do not render out the exact same, and look darkened.

As a test, I drew a simple face on a scuplted sphere, with just black and white, however the White of the eyes looks darkened when rendered...
[![Viewport Render looks fine][1]][1]


[![Actual render dims colours][2]][2]


  [1]: https://i.sstatic.net/NOJyB.png
  [2]: https://i.sstatic.net/QBgeD.png

Does anyone have a solution for this? Thank you in advance.