Thank you for your answer.
Sadly, that doesn’t seem to be the case for me. When I set it all to #CC9900 from the palette it all becomes yellow (the same yellow as when selecting yellow from the left row in the palette). I have never been able to successfully set my RGB LEDs to all the colours, only the six colours I mentioned. Even with firmware updates it didn’t change.
Maybe you have an idea as to why this is? I’d love to have a fully colourful keyboard and I’m generally really happy with it. <3