DAX - countif after grouping

[Celador]

Hi,

I need a series of measures to group some results by two columns and then count specific results in the 3rd column - and I'm very very new to Power BI and DAX.

I've done a bunch of googling, read through a number of posts on here, but I just can't seem to amend the measures I've seen to fit my scenario

A mock up of some data is in the image below:

Measure #1 would need to count the number of 'Red' Results based on distinct UserId's / ResponseId's

Measure #1 would need to count the number of 'Blue' Results based on distinct UserId's / ResponseId's

Using the example data below:

The result of Measure #1 would be 3 

The result of Measure #2 would be 2 

Or in more visual turns, this is effectively what the measure would be doing (see image below) - grouping by User and Response - followed by a count of 'Red' or 'Blue'