book

Wide gamut setup

Basic colorimeters

Software

As of April 2020, Windows 10 is still poorly colour managed.

Set up ICC profiles as needed (Control Panel > Colour Management)
Turn on HD colour settings as needed (Display Settings > Windows HD Color settings)

NVIDIA Control Panel > Display > Change resolution > Use NVIDIA color settings

Mostly for Windows, since colour management on Mac OS has

As of April 2020, Firefox does not manage colour fully. The first bug was opened 12 years ago!

You can force better colour management in about:config.

Set the following

gfx.color_management.mode to 1 to force all content with no profiles to sRGB. This fixes oversaturation of web content, most noticably in reds.
gfx.color_management.enablev4 to true to force ICCv4 support
gfx.color_management.native_srgb to false in Firefox 113.0 (other versions might be affected)

Should behave well by default.

Should behave well by default.

Not colour managed. Switch to a different player.

Should be colour managed, but there is a checkbox in Options > Properties/Settings > Zoom/Color management