More clarification on how colors are handled seemingly needed for both developers & creatives

[lozandier]

About this PR

Similar to issue #7, there seems to be more information developers, designers, & stakeholders may want to have to be equipped to consistently adhere to this styleguide on how they use color.

Recommended Tasks to close this issue

• [ ] To what extent can a team member mutate the existing colors (to what extent can they tint/shade)
• [ ] What are recommended color pairings; WCAG AAA compliancy vs WCAG AA compliancy.
• [ ] How can teammates analyze whether a particular, unique color or color combination is responsible to use; what tools you recommend teammates to use to do that in a meaningful, & justifiable way (i.e. colorsafe.co) ?
• [ ] Are are tools to continuously audit these colors being adhered to at the company?
• [ ] Why RGB or RGBA has historically been a great fit for what Clef has aimed to accomplish to be necessary to only use (compared to HSLA & etc).

[dmleong]

Similar to this issue, is there a guideline for how certain UI elements should be used? Only rounded buttons? When does one use a modal? What components make up a product page? What do forms look like?