Is there any reason I should avoid using colors instead of grayscale in order to perform great speed performance of a website?

To make this question relevant:

Will this ever be loaded and displayed faster

<form style="background-color: #7c7c7c">...</form>

than this?

<form style="background-color: #0000ff">...</form>

CodePudding user response：

No.

While it is possible to design systems which don't deal with colour information for a performance gain, web browsers do deal with colour information (and so much other information that any gains from not dealing in colour would be negligible).