Custom template sensor color

Hello. I have a template sensor that shows me the water level. It has “Normal” and “Low” status and I would like the icon to be green when the status is “Normal” and red when it is “Low”. What would be the best way to do this?

    - name: "Nivel piscina"
      unique_id: a8eced88-10ee-44b9-bcbb-9891a39eeaf8
      icon: "mdi:pool"
      state: >
        {% if is_state("binary_sensor.contact_c6b3_state", "off") %} Normal {% else %} Low {% endif %}