Blue hit markers

[Kouru225]

Saw a video where someone claimed that blue hit markers meant that they weren't damaging punches. I always assumed blue was just a normal punch, other punches were extra damage, and there wasn't any marker for non-damaging punches. What's the truth?

[Ian (Sealost)]

The hit damage spectrum ranges from blue to yellow to red. Solid blue hits (not the lighter ones with some yellow mixed in) don't inflict permanent damage on the opponent and are disregarded by the judges for scoring purposes. The opponent can still react defensively to those punches.

Blocked punches are have a white/gray splash.