Maroon and Dark Red are near-identical red shades — they sit within a few degrees of hue, lightness, and saturation of each other. The difference is mostly in name and historical use. Maroon (#800000) is the CSS named dark red (RGB 128,0,0), while Dark Red (#8B0000) is a slightly lighter, slightly warmer dark red (RGB 139,0,0). Maroon is the web-safe half-red; dark red is marginally brighter and redder.
Four real design scenarios, with the recommended pick based on hue, saturation, and WCAG contrast.
Maroon is more saturated (100% HSL vs 100%) so it reads as bolder and more memorable at logo scale, while Dark Red can feel washed out when printed small.
Maroon hits a 10.95:1 WCAG contrast against white — safer for text-heavy interfaces — where Dark Red only reaches 10.01:1 and risks failing AA at small body sizes.
Dark Red is a warm tone that flatters spring/summer collections and warmer skin undertones, while Maroon leans warmer and is better suited to autumn/winter layering.
Maroon is the more muted of the two (100% saturation) and sits more calmly on large wall surfaces, while Dark Red's higher chroma can overwhelm a room when used beyond accent pieces.
Maroon (RGB 128,0,0) is the CSS named dark red introduced in HTML 3.2 — exactly half-intensity red with no green or blue. It reads as traditional, academic, and serious.
Dark Red (RGB 139,0,0) is a slightly lighter dark red added as a CSS named color later. The 11-unit higher red channel makes it just visibly brighter than maroon.
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.