Hasegawa usually gives Gunze Sangyo color numbers, sometimes both the Mr. Color enamel range, almost unobtainable in the US, but usually the Aqueous Color acrylic range is also referenced. Most hobby stores do not stock Gunze paints, but the mail order houses, like Squadron, do. Hasegawa usually references color names, or a bit of research will reveal the color names or FS numbers, and Testors, Polly Scale, and some other paints are matched to either FS numbers or to country of origin and color name.