In Western culture, Medium Blue is often associated with trust, stability, and calmness. Conversely, in some Eastern traditions, blue can symbolize immortality and spirituality, reflecting its varied significance across cultures.
The term 'medium blue' gained prominence in the 20th century as color theory developed, particularly in the 1950s with the rise of modern design. The use of cobalt in glassmaking dates back to ancient Egypt, showcasing the color's long-standing allure and cultural importance.
Ranked by CIE76 ΔE — the perceptual distance from Medium Blue. Lower ΔE means a closer match (below ~2 is barely distinguishable).
All 45 Blues →Nine steps of Medium Blue by lightness — from #00006B (darkest) to #7A7AE5 (lightest). Click any to copy.
Sitting opposite Medium Blue at 60° on the color wheel, these give the highest-contrast pairings.
Curated 5-color combinations featuring Medium Blue.
A 50–900 tonal scale with Medium Blue anchored at 500 — ready to drop into a design system. Click any step to copy.
Works well as text on light backgrounds; fails on dark.
Thresholds: AA needs 4.5:1 (normal text) / 3:1 (large); AAA needs 7:1 / 4.5:1. Large = 18pt+ or 14pt+ bold.
Copy-ready values for CSS, screen and print, plus the extra conversions designers reach for.
color: mediumblue; color-mix(in srgb, mediumblue 70%, white) 240°, 100%, 80% 100, 100, 0, 20 205 #0000CC How Medium Blue appears to viewers with the three main types of color blindness (~1 in 12 men, 1 in 200 women). Simulated approximations.