HueHarmonyGrid

HueHarmonyGrid is an offline color workspace for creators who want to organize palettes with confidence.

Build a palette from scratch with 2 to 8 colors, start from the included demo sets, and refine each slot with hex, RGB, or HSL input. Each slot can be locked before generating suggestions, so you can protect the colors you already like while exploring complementary, analogous, triad, or tonal ladder ideas.

The app keeps palette names, notes, order, lock state, generation rule, and edit time locally on the device. You can search saved palettes by name or color value, copy a palette as a simple color line or as a named list, and restore deleted work from the in-app flow.

Use the contrast checker to compare text and background colors, swap the pair, and review a neutral result label with a sample paragraph. The checker also supports large-text review and handles alpha values by compositing against an explicit background.

Preferences let you choose the color format, default slot count, preview background, theme, and accessibility options. A built-in guide explains locking, palette suggestions, and contrast interpretation, while the privacy page confirms that palettes and inputs stay local.

HueHarmonyGrid is designed for everyday visual planning, including drafts, notes, posters, and interface ideas, without accounts, cloud sync, ads, or mandatory network access.