title: Cannot get role to change colours
body: <p>I've got a piece of code that takes a specified role and that roles server and puts it into a list, and any roles that are in the list should change colour but well.... it doesn't.</p>
  
  <p>code:</p>
  
  <pre><code>@client.command(pass_context=True,description="Linusifies a role")
  @has_permissions(administrator = True)
  async def rgb(ctx, role : discord.Role):
      server = ctx.message.author.server
      if (("{}, {}").format(server, role)) in rgb_list:
          msg = "{}'s rgb is turned off :disappointed_relieved:".format(role)
          rgb_list.remove(("{}, {}").format(server, role))
          await client.send_message(ctx.message.channel, msg)
          print (server)
  
      else:
          msg = "{}'s rgb has been turned on :christmas_tree:".format(role)
          rgb_list.append(("{}, {}").format(server, role))
          await client.send_message(ctx.message.channel, msg)
          print (server)
  </code></pre>
  
  <p>and in my @client.event:</p>
  
  <pre><code>   async def rgb_():
      await client.wait_until_ready()
      while not client.is_closed:
          print (rgb_list)
          await client.edit_role(rgb_list,colour=discord.Colour(0x1abc9c))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0x11806a))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0x2ecc71))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0x1f8b4c))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0x3498db))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0x206694))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0x9b59b6))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0x71368a))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0xe91e63))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0xad1457))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0xf1c40f))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0xc27c0e))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0xe67e22))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0xa84300))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0xe74c3c))
          await asyncio.sleep(2)
          await client.edit_role(rgb_list,colour=discord.Colour(0x992d22))
          await asyncio.sleep(2)
  </code></pre>