Low saturation is unforgiving
Small saturation changes are easier to notice when the color is close to gray.
Bugs Bunny-inspired practice is about subtle shifts: warm gray, cool gray, cream, and soft pink. These shades reward careful lightness control.
Original practice palette. No official artwork is used.
Small saturation changes are easier to notice when the color is close to gray.
Warm gray feels soft; cool gray feels metallic.
A gentle accent color makes the neutral shades easier to compare.
Gray and cream pages are useful because they remove the easy part of color guessing. You cannot rely on a bright hue label. Instead, you have to judge whether the shade is warmer, cooler, lighter, or more muted than your first memory.
Set saturation lower than feels natural, then use lightness to shape the final guess. If the color looks dirty, the hue may be too warm. If it looks metallic, it may be too cool. Repeat the palette after a colorful round to train subtle contrast.