The main difference between Chocolate and Rust is brightness and saturation: both are orange shades, but Chocolate is lighter and Rust is more saturated. Chocolate (#D2691E) has an HSL of 25°, 75%, 47%, whereas Rust (#B7410E) sits at 18°, 86%, 39%.
Chocolate (#D2691E) is a medium, vivid orange with a warm undertone — it feels balanced, versatile and bright, energetic, eye-catching.
Rust (#B7410E) is a dark, vivid orange with a warm undertone — it feels rich, serious, substantial and bright, energetic, eye-catching.
Text legibility depends on the contrast ratio between foreground and background. WCAG 2.1 AA requires at least 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Use these numbers to choose accessible combinations for your design.
Each color has a dedicated page with shades, tints, CSS name, pairings, and color psychology.