Thank you for reaching out to the Bose Community. Welcome to the site.
I'm sorry to hear you are getting poor results with the volume of your SoundLink Color when connected to your television.
When connected to a product with a variable audio level, I would recommend ensuring the TV is set to 100% then adjust your speaker's volume accordingly. This should help you achieve a useable volume. Remember, this isn't a soundbar, so will not perform as one, but will certainly be able to handle audio better than most televisions will.