The main difference between Powder Blue and Periwinkle is hue — Powder Blue is a cool cyan, while Periwinkle is a cool purple. Powder Blue and Periwinkle are often confused but have distinct differences in hue, saturation, and tone. Powder Blue (#B0E0E6) and Periwinkle (#CCCCFF) 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.
Periwinkle is more saturated (100% HSL vs 52%) so it reads as bolder and more memorable at logo scale, while Powder Blue can feel washed out when printed small.
Periwinkle hits a 1.54:1 WCAG contrast against white — safer for text-heavy interfaces — where Powder Blue only reaches 1.43:1 and risks failing AA at small body sizes.
Periwinkle is a cool-leaning tone that flatters spring/summer collections and warmer skin undertones, while Powder Blue leans cooler and is better suited to autumn/winter layering.
Powder Blue is the more muted of the two (52% saturation) and sits more calmly on large wall surfaces, while Periwinkle's higher chroma can overwhelm a room when used beyond accent pieces.
Powder Blue (#B0E0E6) is a very light, moderately saturated cyan with a cool undertone — it feels pale, delicate, gentle and balanced in intensity.
Periwinkle (#CCCCFF) is a very light, vivid purple with a cool undertone — it feels pale, delicate, gentle 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.