Ensure all Figma colors have enough contrast for WCAG standards

[st0nebreaker]

Even non-text graphical object need a minimum contrast of at least 3:1. Many of our semantic colors such as info violate that on light theme.

• https://webaim.org/resources/contrastchecker/ is a great tool in testing colors contrast levels & passibility.

We should ensure all our colors on light & dark themes pass WCAG color contrast standards.