RAL and NCS values are nearest equivalents, not official designations.
In Western cultures, Air Force Blue symbolizes authority and trust, often used in contexts related to aviation and defense. Contrastingly, in some Eastern cultures, blue can represent healing and tranquility, adding layers to its significance.
The term 'Air Force Blue' was first officially used in 1918 by the British Royal Air Force. The color was inspired by the blue of the sky, which pilots relied on for navigation, making it a vital part of military identity during World War I.
Ranked by CIE76 ΔE — the perceptual distance from Air Force Blue. Lower ΔE means a closer match (below ~2 is barely distinguishable).
All 45 Blues →Nine steps of Air Force Blue by lightness — from #304857 (darkest) to #ABC2D2 (lightest). Click any to copy.
Sitting opposite Air Force Blue at 24° on the color wheel, these give the highest-contrast pairings.
Curated 5-color combinations featuring Air Force Blue.
A 50–900 tonal scale with Air Force Blue anchored at 500 — ready to drop into a design system. Click any step to copy.
Works well as text on dark backgrounds; fails on light.
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: #5D8AA8; color-mix(in srgb, #5D8AA8 70%, white) 204°, 45%, 66% 45, 18, 0, 34 6130344 #669999 How Air Force Blue appears to viewers with the three main types of color blindness (~1 in 12 men, 1 in 200 women). Simulated approximations.