Here's how to access the color picker in Windows 11.
The tool isn't built in. But it can be had by installing a small collection of utilities, called PowerToys.
Open the terminal by going to the Start menu and typing
In the terminal, type the install command to install via the Windows Store (yay!):
winget install Microsoft.PowerToys --source winget
Open the Color Picker
Then to open the color picker anywhere on your desktop, press:
No hex is safe from you now!