Undertone Reviews — Discover what people think of this product.

Most palette tools hand you five flat swatches and call it done. Undertone shows you the architecture of color in any image:

Palette with proportions. Not just which colors, but how much of each. A 60/5 warm-cool split is a different palette than 50/50. Swatches carry painter-friendly names like Cadmium Yellow and Payne's Gray, not "Autumn Sunset Dream."

Color harmony. Your colors plotted on the wheel: complementary, analogous, triadic, split-complementary, and more. And if there is no clean harmony, Undertone will not pretend.

Temperature map. A warm-cool overlay that makes the invisible visible. Muddy shadows, flat game levels, magic golden hour, they are all temperature problems you can finally see.

Value structure. The automated squint: your image stripped to grayscale and divided into clear tonal zones, because zones are what painters think in.

All analysis is computed on your device. Your images never leave your phone. No account, no sign-up, no tracking. Free tier has unlimited analyses; a single lifetime purchase unlocks Composition (10 guide types), Contrast analysis, unlimited history, and full-resolution export. No subscription.

Available on iOS, iPad, Android, and macOS.