ToneWeave

ToneWeave is an offline color palette and contrast helper for everyday creative work. Create palettes with 2 to 8 colors, start from a seeded demo set, and save your own color combinations locally on the device. Edit each slot with a hue wheel, saturation and lightness sliders, a hex input, or direct RGB and HSL text input. Invalid input keeps the previous color and shows a clear format hint. Lock any slot before generating new suggestions. Preview complementary, analogous, triadic, and lightness-step variations before applying them, and keep locked colors unchanged while the remaining slots update. Reorder colors by dragging, copy individual values, and use undo while editing. Browse your saved palettes, search by name or color value, open details, copy a one-line palette list or a named list, and restore deleted palettes with the undo action. Recent edits are easy to revisit from the home screen. The contrast checker lets you compare foreground and background colors, swap them instantly, and review the result with a ratio, a sample paragraph, and a neutral label such as weak, basic, or clear. It also supports normal and large text modes and handles transparent colors by compositing them over the chosen background. Preferences let you choose the display format, default slot count, preview backdrop, theme mode, reduced motion, and large text. Everything stays local, with no account, cloud sync, camera access, photo access, or other online dependency required for core use. ToneWeave is designed for palette planning, poster drafts, journal layouts, and interface mockups where manual color control and readable contrast matter.