Filtering point cloud based on user colour parameter

I'm trying to to filter a point cloud based on a user selected colour.

The PointCloudFilter can have expressions like

@Component(color_red)==230 && @Component(color_green)==0 && @Component(color_blue)==0

The fme colour parameter stores the colour as `0.901961,0,0'

Is there a better way to use the colour parameter than

ParameterFetcher, AttributeSplitter, AttributeCreator (_list{i}*255 3 times)