You can adjust the tint of an individual object, or create tints by using the Tint slider in the Swatches panel or Color panel. The tint range is from 0% to 100%; the lower the number, the lighter the tint will be.
Because colors and tints update together, if you edit a swatch, all objects that use a tint of that swatch update accordingly. You can also edit the base swatch of a named tint using the Swatch Options command in the Swatches panel menu; this updates any other tints based on the same swatch.
The tint appears in the Swatches panel with the name of its base color and the percentage of the tint.
To edit the tint, change the Tint value. This updates all objects using that tint swatch.
To edit the tint’s base color swatch, change the Color Mode or the Color Mode values. This also updates all other tints based on that same color swatch.