dulux paint - Stone washed blue colour (Kemptown BN2)

Oil based satinwood, 2.5L
Bought this earlier this week, started using it and realised its the wrong colour! D'oh. It's more than half full and still clean. It's a lovely colour.
https://www.diy.com/departments/dulux-easycare-stonewashed-blue-matt-emulsi...)&utm_term=27795&utm_content=&ds_rl=1272379&gclid=3944d80026461891be43bf9672ca64c0&gclsrc=3p.ds&irclickid=1LKVLIVK%3AxyKWyySazXyuXYxUksxZpXX5QCFUg0&irpid=27795&irgwc=1