Blue
Vallejo Model Air 71.004

Vallejo Model Air 71.004 »Blue« compared to Kreul 75.518 »Steel Blue« and PRIMAcryl 13.431 »Indigo«, lightened with 30 % white, painted on Prussian grenadiers of Füsilier-Regiment von Braunschweig (Jung-Braunschweig).
The two shaded blue colours are better suited for painting miniatures, which is why we use Vallejo 71.004 »Blue« primarily for mixing other shades and tints of blue and green.