Color, organized.
For years I've worked in two rooms: one full of canvases, one full of screens. This app is the door between them — palettes curated the way a painter sees color, built the way a designer expects a tool to feel.
Ambient mode
Press and hold the menu button and the app goes full screen, with every label and control hidden. Palettes drift and auto-cycle. Just color.
Press and hold to reorder
Press and hold any color, then drag it onto another to rearrange a palette. It saves automatically.
800+ palettes, sorted by feel
Organized by mood: warm, cool, vibrant, neutral, dark. Swipe up for a new palette, down to go back. Tap any color to copy its hex code. Save the ones you love.
Palettes from my paintings
One pack is drawn directly from my canvases. The Starter Kit adds the rest. New packs arrive over time; the app checks automatically.
Built from color theory
Six harmony schemes: Complementary, Analogous, Triadic, Split-Complementary, Tetradic, Monochromatic. Pick a base color and the palette generates live. Save it, or use it as a starting point.
Pull colors from any photo
Point at a painting, a room, a sunset. The app finds the dominant colors using k-means clustering. Any image becomes a palette you can use or save.
Now on the Mac
A Book of Colors runs on the Mac too. It lives in your menu bar, one click away, with keyboard shortcuts and the same Ambient mode (⇧⌘A). Your saved palettes and liked colors stay in sync across all your devices through iCloud, so your library is the same everywhere.
How it works
-
Swipe up to load a random new palette
-
Swipe down to go back to the previous palette
-
Swipe left and right to change the layout
-
Tap the circle icon to open the settings panel
-
Tap any color to copy its hex code to clipboard
-
Press and hold any color, then drag it onto another to reorder — saves automatically
-
Press and hold the circle icon to enter Ambient mode — palettes auto-cycle every few seconds. Tap anywhere to exit.
-
Saved palettes appear in the Browse tab