Yeah that's what I thought and I was under the impression that Halfords had the stuff to do that - turns out they don't do paint matching any more. They were my last hope on a weekend, but there are a few 'real' paint companies near me ..... but they are all closed until Monday
National School Bus Glossy Yellow as it is known in the US and Canada is pretty close. It used to be called National School Bus Chrome. It is a start to look at.
Around 2006 there was a colour option, Scorched Yellow. It’s a bit hard to tell from your photo but the gauges are certainly from that vintage. If your bike is in the VIN range 241570 > 281465 and it doesn’t look like a respray I’d say that’s what it is.