At the beginning of a UX research and design project a Stakeholder Interview should be conducted to find out the Business Goals, Existing Research including User Research, Competitors and Technological Limitations.
Interviews
Stakeholder Interview — UX Knowledge Base Sketches
Colour contrast between text and background is important on web pages. It affects some people’s ability to perceive the information (in other words to be able to receive the information visually).
Accessibility
Colour Contrast - Why Does It Matter? — GOV.UK
Knowledge
Setting Up Carousels for Instagram in Adobe Illustrator