The dye included in the KAPA2G Fast Genotyping Mix allows for the loading of PCR products on gels directly after PCR. It contains a mixture of two dye components, which gives the mix a green color at the time of loading. This resolves into a blue and an orange component during electrophoresis. The blue band migrates with fragments of 3 – 4 kb on a 1% gel, whereas the orange band migrates with fragments <50 bp.