Well, I would not take any advice from this crowd, as the OWC is the shortened name for you business it should be bold as you van passes you only have few seconds to red the orange will work.
My best advice is make up your own mind at what you are trying to achieve.
It's the best place to take advice as we All have logos so know what works... Owc doesn't mean anything to people, they need to know its a window cleaner, clarity is key. Look at any major brand, it will always be clear.
My wife works in marketing, rule number 1, make sure your brand is clear and easy to read. Take tesco and asda for example - big clear writing, simple brands.