EMS colour codes explained

What those short EMS codes after a cat’s name actually mean — breed, colour, pattern and more, with a worked example.

EMS stands for the Easy Mind System — a standard shorthand used across GCCF and FIFe to describe a cat’s breed and appearance in a few letters and numbers. Once you can decode it, you can read any cat’s essentials instantly.

The breed code

The first part is the breed: for example SIA (Siamese), BSH (British Shorthair), OSH (Oriental Shorthair). It’s always three letters.

The colour code

Next comes a colour letter — for instance n for seal/black, a for blue, b for chocolate, c for lilac. The same letters are used consistently across breeds.

Pattern and other modifiers

Additional numbers and letters describe pattern and features — tabby, bicolour, white markings, and so on. For example 03 indicates bicolour, 21 indicates a tabby/agouti pattern.

A worked example

BSH a 03 reads as a British Shorthair (BSH), blue (a), bicolour (03) — a blue-and-white British Shorthair. Simple, once it clicks.

Never look one up again

Perfect Pedigrees translates breed, colour, pattern and eye colour into the correct EMS code automatically as you enter a cat — no charts, no guesswork.

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