Easier to mix it, using yellow and green, with a tiny, tiny touch of silver. The tones varied, as mentioned, depending on the zinc and additives, from a semi-metallic version of (US) Interior Green, to mustard yellow, and shades in between! The difference in appearance to (green) Zinc Chromate, and Interior Green, was that the latter had a semi-matt sheen, whilst the ZC was flat, with an underlying minor hint of metal particles, and appeared very slightly lighter.