The main difference between Forest Green and Olive Green is hue — Forest Green is a cool-leaning green, while Olive Green is a cool-leaning yellow-green. Forest Green (#228B22) has an HSL of 120°, 61%, 34%, whereas Olive Green (#6B8E23) sits at 80°, 60%, 35%.
Four real design scenarios, with the recommended pick based on hue, saturation, and WCAG contrast.
Forest Green is more saturated (61% HSL vs 60%) so it reads as bolder and more memorable at logo scale, while Olive Green can feel washed out when printed small.
Forest Green hits a 4.39:1 WCAG contrast against white — safer for text-heavy interfaces — where Olive Green only reaches 3.81:1 and risks failing AA at small body sizes.
Olive Green is a cool-leaning tone that flatters spring/summer collections and warmer skin undertones, while Forest Green leans cooler and is better suited to autumn/winter layering.
Olive Green is the more muted of the two (60% saturation) and sits more calmly on large wall surfaces, while Forest Green's higher chroma can overwhelm a room when used beyond accent pieces.
Forest Green (#228B22) is a dark, moderately saturated green with a cool-leaning undertone — it feels rich, serious, substantial and balanced in intensity.
Olive Green (#6B8E23) is a dark, moderately saturated yellow-green with a cool-leaning undertone — it feels rich, serious, substantial and balanced in intensity.
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.