In the sweetener market yellow may mean sucralose, or perhaps sodium cyclamate

Colour is a key part of branding for many organizations but if you use the same colour as your competition then your customers are likely to get confused about which product is which.

So, both SugarTwin (sodium cyclamate) and Splenda (Sucralose) are using this rather fetching yellow for their single-serve packaging.

As I don't use either products it makes not difference to me, but I'm sure that lots of consumers have got confused. And for a marketer, confused customers are never a good thing.