Print Colour Vs Screen Colour

[Zakiyya]

Hi!

I have designed an advert. The client loves the purple color (on the top and bottom sections) as it appears on the screen/computer monitor.

However, the print color is very different (when one simulates the print color)

How can I achieve a print color as the one displayed on the screen instead of the print colour.

I know I need to change the color of the purple, but what value should I use?