Choosing colors for an app or website is not just about picking your favorite shades. Color has a tremendous psychological impact on users and can dictate whether a website feels like a premium app or an amateur project.
The 60-30-10 Rule
This is a foundational rule of interior design that translates perfectly to web interfaces. To create balance:
- 60% Primary Color: Usually your background colors or dominant brand color. Provides the neutral anchor.
- 30% Secondary Color: Used for less prominent UI elements, cards, and secondary buttons.
- 10% Accent Color: A highly contrasting color used strictly for Call-to-Action buttons (like 'Buy Now') and important alerts.
Contrast and Accessibility
Vibrant colors look great, but if your text doesn't contrast enough with its background, millions of visually impaired users won't be able to read it. Always ensure your text-to-background contrast ratio meets the WCAG AA standard (at least 4.5:1).
Emotional Associations
Remember that colors carry heavy cultural weight. Blue implies trust and stability (used by Banks and Facebook). Green suggests growth and success. Red implies urgency or errors. Pick colors that align with your site's core mission.