HSL stands for Hue, Saturation, and Luminance. You may find this system easier to use than RGB or hexadecimal systems.

The WCAG Color Contrast requirement applies to all web content, including text, images, links, buttons, interface elements, tables, icons, and more.

Assistive technology is a device, application, setting, or adaption a person with a disability needs to access digital content. 

Titles and heading 1 are critical for screen reader users, each with a different purpose.

A faux heading is text that looks like a heading in size, weight, or color but is not formatted with an HTML heading tag or a document heading style.

Think of headings as an outline or table of contents for your webpage.