How to compare F&B paints with each other?

[balzamico]

Is there a way to compare three F&B colours of my own choosing on a palette the way they do on the website?
Like this;

No idea about the website but when I'm colour matching I take screenshots amd create a collage on my phone x

They do a colour fan which is quite handy for £15

www.farrow-ball.com/paint/colour-fan-en

Pick up a colour chart and cut out the swatches

The colours on the screen are not really accurate, of course, but just to get an idea I take screen shots and then line them up next to one another.