Certain colors have inherent meaning for a large majority of users, although we recognize that cultural differences are plentiful. For example, we use red to communicate an error.
Salesforce uses many secondary colors in conjunction with iconography to visually differentiate between similar types of content, such as records of different object types. However, it’s important to not always rely on color to provide visual differentiation. If too many use cases employ color in this manner, the colors lose their meaning.
Color is used sparingly to draw attention to important elements and those that we want the user to take action on. Because most of the application is gray, pops of color catch a user’s eye.
It’s important that our products meet all web accessibility standards, including the minimum contrast ratios that the WCAG 2.0 specifies for text and background color combinations. This adherence helps users who are colorblind or have low vision to better interact with Salesforce, but it also improves usability and readability for all users.
You can find some of the most common text and background color combinations in the CSS Framework Themes section. They are all vetted to pass the minimum contrast ratios, including both normal text and link text styles.