Design Principles What is the 70 20 10 rule for colors? March 5, 2026 by Mercier | Leave a Comment The 70-20-10 rule for colors is a design principle that suggests a balanced color palette uses 70% of a dominant color, 20% of a secondary color, and 10% of an accent color. This guideline helps create visually appealing and harmonious designs, whether for interiors, branding, or web pages. Understanding the 70-20-10 Color Rule for Harmonious […] Read more ยป