Blender version **2.83**.

I learnt putting an image on a surface with [this][1].
All is working well. But, the output image isn't as 'high quality' as expected.

First, I create a 2D image in inkscape, 512x512.

Then, putting it on a surface, as below:
[![enter image description here][2]][2]

Finally, **Render** -> **Image** -> **Save As**


Comparing side by side:
[![enter image description here][3]][3]

The left is the original 2D image, the right is the rendered image in Blender.

I can observe that, the word 'abc', originally white color, becomes a little 'grey' or 'dull'.
(It just doesn't look as bright and vivid as the origin, did i miss some configuration?)






  [1]: https://blender.stackexchange.com/questions/36401/how-do-i-add-material-textures-to-only-one-face-of-an-object
  [2]: https://i.sstatic.net/YYBa0.png
  [3]: https://i.sstatic.net/P4rld.png