Best rich electric blue?

[JWHairdressing]

I’ve got a client wanting a blue ombré effect. I’m curious as to what people would suggest? The colour needs to last at least 4 washes.
I was thinking about using matrix blue boost with the coloursync blue?

Help

 

[Jenna Smith]

Loreal colourful hair in navy is amazing x

 

[EssexFreelance]

Wella colour Fresh Create in New blue is lovely

 

[JWHairdressing]

Thanks guys I’m going to go and investigate more at the wholesalers tomorrow! Never used wells or L’Oréal but willing to try for the best blue x