Compressed so hard... jpeg
(189 B, 2500x1750)

No image. No Colors.... jpeg
(171 B, 2500x1750)

 >>/3208/
If we take it to the extreme, this is the result. 189/171 bytes. It's still the same image as before, no graphics editing beforehand, no manipulation, just pure tuning of compression parameters.
What's funny though, that it's way smaller than GIF or PNG. Another win for JPEG.

The 171 bytes version arguably is nonconformant to the standard (the JFIF header removed), so it's a grey area pun not intended

I had to rebuild my mozjpeg to save those 18 bytes, hence why posting this with this lag. I could've just hex-edited the header out myself, but meh. No cheating.