create new functional fields color in .py file that will change values as per state.

def change_colore_on_kanban(self):
 """    this method is used to chenge color index    base on fee status    ----------------------------------------    :return: index of color for kanban view    """    
    for record in self:
         color = 0
         if record.status == 'occupied':
             color = 2
         elif record.status == 'available':
             color = 5
         elif record.cleaning_status == 'dirty':
             color = 7
         elif record.cleaning_status == 'cleaned':
             color = 5
         else:
             color=5
         record.color = color

color = fields.Integer('Color Index', compute="change_colore_on_kanban")

then define kanban color on new field in xml file.

<div t-attf-class="#{kanban_color(record.color.raw_value)}">