Coding ɗin launi na fiber na gani yana nufin al'adar amfani da sutura masu launi ko alamomi akan filaye da igiyoyi don gano nau'ikan zaruruwa, ayyuka, ko halaye daban-daban. Wannan tsarin ƙididdigewa yana taimaka wa masu fasaha da masu sakawa da sauri su bambanta tsakanin zaruruwa daban-daban yayin shigarwa, kulawa, da kuma gyara matsala. Anan ga tsarin ƙirar launi gama gari:
A cikin GL Fiber, Akwai sauran alamun launi akan buƙata.