In the old days, before CSS, background colours were set using the bgcolor
attribute as below:
<html bgcolor="rgb(255, 0, 0)"> </html>
But since this is quite an old way of doing things and not used often nowadays, you'll probably find it has a lack of support in some newer browsers like Google's Chrome. I came across this issue when I was trying to make the background red by using rgba(255, 0, 0) which would normally produce red and does in other browsers, but in Google's Chrome browser it produces a totally different colour. I believe this is because Google did not spend much time working on support for this older attribute that should be banished from HTML5 altogether. Below is a sample that may or may not do anything at all:
Have you experienced this issue where the colour value represents different colours on different browsers? If so let me know by commenting below.