Canon EOS R3 Advanced User's Manual page 371

Characteristics
Adjust as needed. Select an option ([Sharpness: Strength], [Saturation], or [Hue]), adjust
the effect level, then press < >.
Sharpness: Strength 0: Weak outline emphasis 7: Strong outline emphasis
Saturation −4: Low +4: High
Reds −4: Toward magenta +4: Toward yellow
Hue* Greens -4: Toward yellow +4: Toward cyan
Blues -4: Toward cyan +4: Toward magenta
* Reds, greens, and blues cannot be adjusted separately.
Color space
Choose [BT.709], [BT.2020], or [Cinema Gamut] as the color space for HDMI output or
recording to cards.
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