Colours are really up to your personal preference. For us they might match, for you they might not, or the other way around. Our colour recommendations are basically what we show as products in our online shop, specifically in our helium balloon bouquets collection. These are the ones we like and with how many colours we’d go (usually 4 as a maximum). You can find dozens of different colourways there and our product description will always show you the exact colours and colour series used. Therefore we usually don’t like to give recommendations or insist on what is matching on what is not.
It’s all about you, and your personal taste.