Multiple Select option

Hi ShivGC ,

Please try to create a measure with below dax formula:

Measure =
VAR _a =
    SELECTEDVALUE ( 'Client  Information'[Client ] )
VAR tmp =
    SELECTCOLUMNS ( Client, "Client Name", [Client] )
VAR _str =
    CONCATENATEX ( tmp, [Client Name], "," )
VAR _result =
    IF ( CONTAINSSTRING ( _str, _a ), "#006D9E", "#A6E2EF" )
RETURN
    _result

Add a scatter visual with Client Information table, and set the markers color

Please refer the attached .pbix file.

Best regards,
Community Support Team_Binbin Yu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

IsTable1InTable2 = 
IF(
    COUNTROWS(
        FILTER(
            'Table1',
            'Table1'[ColumnName] IN VALUES('Table2'[ColumnName])
        )
    ) > 0,
    TRUE,
    FALSE
)

Here is a code that worked for me 🙂