Button color recommendations typically focus on usability and visual appeal. It is recommended to choose colors that stand out against the background, ensuring they are easily noticeable. High contrast between the button color and the background can improve clickability. Additionally, colors should evoke the desired action, such as using blue for 'click here' buttons and green for 'submit' buttons. Accessibility considerations, like ensuring color combinations are distinguishable for color-blind users, are also important.