[IntelliSense] Show contrast ratio on text and background colors

[Svish]

It would be really awesome if the Tailwind intellisense could help me choose sensible contrast ratios.

I found tailwindlabs/tailwindcss-intellisense#182, which suggests to add a warning if it's too low, but as the reply says, that's kind of difficult since you also need to know the size of the text.

So, how about instead just show the ratio and whether it could be good or bad? For example something along the lines of how this site does it:

Some similar information, although could probably be quite a bit more concise, would be really helpful in the tooltip when hovering over either background or text color classes, as long as the other one is also specified.