What shade of blue

I am getting ready to build a WWII French fighter, a first for me. What is the shade of blue that forms a third of the rudder stripes typically found on. French aircraft of the era?

Humbrol 89 is supposed to be a good match for the color.

Thanks Stik! That does look like the blue I have seen in my online research for the aircraft I am getting ready to build.

Humbrol to Vallejo Model Color chart. 89 is supposed to cross to Vallejo 901. I take no credit or discredit for accuracy. Hit the link for other colors or copy paste as the case may be…

file:///C:/Users/David/Downloads/HUMBROL%20CONVERSION%20CHART.pdf