The main difference between Royal Blue and Electric Blue is hue — Royal Blue is a cool blue, while Electric Blue is a cool cyan. Royal Blue and Electric Blue are often confused but have distinct differences in hue, saturation, and tone. Royal Blue (#4169E1) and Electric Blue (#7DF9FF) each suit different design contexts — understanding their differences helps you choose the right color for your project.
Four real design scenarios, with the recommended pick based on hue, saturation, and WCAG contrast.
Electric Blue is more saturated (100% HSL vs 73%) so it reads as bolder and more memorable at logo scale, while Royal Blue can feel washed out when printed small.
Royal Blue hits a 4.85:1 WCAG contrast against white — safer for text-heavy interfaces — where Electric Blue only reaches 1.25:1 and risks failing AA at small body sizes.
Electric Blue is a cool-leaning tone that flatters spring/summer collections and warmer skin undertones, while Royal Blue leans cooler and is better suited to autumn/winter layering.
Royal Blue is the more muted of the two (73% saturation) and sits more calmly on large wall surfaces, while Electric Blue's higher chroma can overwhelm a room when used beyond accent pieces.
Royal Blue (#4169E1) is a medium, vivid blue with a cool undertone — it feels balanced, versatile and bright, energetic, eye-catching.
Electric Blue (#7DF9FF) is a light, vivid cyan with a cool undertone — it feels airy, soft, approachable 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.