"Your" color is going to look like "your" color. For all my weddings you'll see me pull this out and take a few pictures of it, this is called my portable color chart. I use this chart to calibrate my camera to each of your wedding locations. You spent a lot of time making sure it was "That specific shade of blue" and I want to make sure its that exact shade of blue.
This picture was taken with a Canon 1DX and a 35mm Lens. X-Rite Color Checker