The main difference between Brown and Scarlet is brightness and saturation: both are red shades, but Scarlet is lighter and Scarlet is more saturated. Brown (#A52A2A) has an HSL of 0°, 59%, 41%, whereas Scarlet (#FF2400) sits at 8°, 100%, 50%.
Brown (#A52A2A) is a medium, moderately saturated red with a warm undertone — it feels balanced, versatile and balanced in intensity.
Scarlet (#FF2400) is a medium, vivid red with a warm undertone — it feels balanced, versatile 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.