When your boss says "more red" on a banner that's already "#ff0000".

and all you can do is contemplate how your life got to this point... What is this life?? haha

Add an other banner with #ff0000 on top of the first one. Two red banners are better than one !

#NealedIt

Re-calibrate his eyes with your fist ;-)

Fill it with the word RED x 100000000. ;)

You should ask your boss if he is colorblind lol

it's not a well known technique but you could actually use
rgba(5000,0,0,-1)
An ancient CSS master once told me by using a negative alpha you can transcend the limitations of the color spectrum. Every web developer is only allowed to do it once in a lifetime, and you've gotta write !important 3 times show that you really mean it. warning though, you might break your boss's monitor

you can not get more red than that

Did he also ask for more cowbell?