he first figure can be 1,2 or 3 and indicates the level of sheen:
1 = gloss
2 = semigloss
3 = matt
For simplicity, all colours in this chart are referred to as matt (begin with 3). colour matches for matt colours apply also to semi-gloss or gloss colours — just replace the leading digit with 2 or 1, respectively.
Matt, satin or gloss clear lacquer should be applied to painted object to obtain the desired quality of finish.
The second figure of FS code indicates a general colour classification group —
0 = brown
1 = red
2 = orange
3 = yellow
4 = green
5 = blue
6 = grey
7 = other (white, black, violet, metallic)
8 = fluorescent
The remaining figures (third to fifth) combined into a number indicate the intensity. Lower value indicates a darker colour, higher value — a lighter colour, with no other significance. The numbers have been assigned with gaps to allow addition of new colours.
FS.595 is a colour collection, not a complete colour system, an this has the following implications:
The existence of a colour chip 3xxxx in the FS binder doesn’t imply that there is a colour chip for 1xxxx. However, references to such «virtual» chips built on the principle «same colour, but different sheen» is a widespread practice in model-related literature.
The FS in not extensible, i.e. it does not allow to derive new colours form the existing ones. Thus, if you compare i.e. RLM colours to FS codes, you can only refer to the nearest existing FS colour, which most often isn’t a perfect match. In practice, the FS set is extensive enough to find a good-enough match for almost any colour.