I ran across a monk with baby blue dyed fow armor. It was a super light blue, sky blue, or baby blue, but I can't for the life of me duplicate it with the combinations I've tried.
Does anyone know how to make a nice light blue dye?
The mix for a very deep crimson for my Dervish's Primeval was 3 Blacks and a Red dye mixed for every piece of armor. I don't know exactly why I decided to blow money like that but I thought it was a good idea at the time and it turned out pretty good but do remember the Primeval armor is good for dyes anyways and so it can be unpredictable for most other armor pieces.
As for a light blue, I would honestly say probably one blue dye and two white dyes if I would be assuming the color that your talking about. Good luck replicating as sometimes there are people who dyed their armor while dye remover was still around and they got some colors that we can not achieve anymore.
One option when you find people like this (for future reference)--just PM them! Most people are usually happy to see that someone else likes their dye combo and are willing to share