How to get mat-primary color in angular material-18

I have upgraded my Angular-16 project to angular-18. its working fine. Angular material-18 also upgraded.

Now I want to assign primary color to some elements, syntax is something like this:

@use '@angular/material' as mat;
background-color: mat.get-color-from-palette($primary, 300) !important;


But its not working. Need some help. I havent created any custom theme also.

Thanks

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