You don't have to reside the entire house even if you can't find the
blue siding.

Side the remainder with whatever and paint the whole house with
whatever color you like
using 100% acrylic paint.

Honestly, it will last forever.

You will never have to paint it again.

My brother painted his blue vinyl siding white in 1988 and to this day
it looks great.

And believe me one gallon of paint goes a long way on vinyl.

So it won't cost much.

Hope this helps.