I actually don't like the question "what's your favourite colour?" because it's so context dependent. My favourite eyeshadow colour is not my favourite clothing colour is not my favourite home decor colour, is not my favourite flower colour. (Bronzy-gold, coral, royal blue and a rich sunshine yellow btw) And that's not even getting into how textures and finishes changes things!
But these snapdragons are a deep velvet red that is darker and softer and somehow higher contrast than my phone can accurately capture and if I had to make a list, this colour would be pretty up there.