Studio Display Too Yellow (warm)

My brand new Apple Studio Display has arrived. I've connected it to my MacBook Pro. However, in comparison to my desktop iMac, the Studio Display is decidedly more yellow (warm) in colour. I've searched the settings. Night shift is off and set to as far left "Less Warm" as it can go. I cannot readily find any other settings.

Can someone provide any recommendations as to why it is so yellow and how do I fix this? I find it impossible to believe that a "Photography/arts" monitor is not possible to get a WHITE color.

Thank you in advance.

Cheers.

David