I only use warm tone papers and can control the degree of warmth very easily and that includes colder tones.
People forget that exposure and subsequent development time has a very great effect on image colour, slight under expose slightly and a longer development time gives colder tones and over exposure and shot times give greater warmth. This only works with papers containing Silver Chloride & Bromide and some work better than others.
Older papers (in terms of storage) tend to be less warm, this is certainly true of Multigrade Warm Tone, Forte Polywarmtone, older Agfa papers like Record Rapic and MCC.
Metol/Hydroquinone developers are colder toned than the equivalent Phenidone (or Dimezone)/Hydroquinone developers - unless Benzotriazole is added.