When an item that can be tinted is given the consumable component (with has_consume_particles set to true), its particles will not be tinted the same colour as the item.
This affects leather armour, dyed wolf armour, potions, tipped arrows, and coloured firework stars. This would in theory also affect spawn eggs but they cannot be eaten even with the consumable component so that cannot be observed.

How to Reproduce:

1. Use this command to give yourself a consumable leather helmet that has been dyed magenta:

   /give @s leather_helmet[consumable={},dyed_color=16711935]
   

2. Start eating it

Observed Behaviour:

The particles produced are always white, regardless of what the dyed_color value is.

Expected Behaviour:

The particles match the tint colour of the item.