We cannot call it a ‘must’ but it is surely one of the most popular colors for a cleaning company logo. You have to remember that creating a brand identity is about investing in design elements that help the audience make an immediate connection between the design and the business behind it. A green cleaning logo is perhaps the best choice for a cleaning company that wants to establish itself as a sustainable business in the community. Commercial cleaning service logo designers that want to feature eco-friendly practices in their operations and processes often want to go with the green color in their cleaning logo idea to communicate their commitment to nature to their audience.