Light MQTT - how do I get RGB into different topics?

So I can extract the three colors with this

  red_template: '{{ value_json(Color[0:2] | int(base=16) }}'
  green_template: '{{ value_json(Color[2:4] | int(base=16) }}'
  blue_template: '{{ value_json(Color[4:6] | int(base=16) }}'

But how do I put these into seperate MQTT topics?