Standalone browser tool · scientific colours
Scientific Palette Explorer
Choose a palette, assign colours to your categories, and save a reusable configuration for figures, R, Python, or Cytoscape. Match colours by name, even when rows are reordered.
Inputs stay in this browser. Save the JSON mapping yourself; the page does not upload or store it.
1. Choose a palette
Browse categorical palettes for experimental groups, modules, or other named categories.
Selecting a palette changes suggestions for new categories only. To start over with its colours, use “New mapping”; your existing keys are replaced only after confirmation.
Selected colours & source
Value-scale colour references · 5 selections
Separate references for continuous plots or heatmaps. These are labelled swatches, not calibrated scales: no value positions or interpolation are defined. Downloading them does not change category colours.
2. Configure category colours
Already have a saved mapping? Import it
Load a saved mapping
Import JSON or a category,color_hex CSV. Cytoscape module/node CSVs with Primary_module_final and Primary_fill_color_hex are also supported. Identical repeated keys collapse; conflicting colours are rejected.
Or edit the illustrative mapping below.
Use 1–100 unique category keys. Names are trimmed and case-sensitive. Changing a suggestion preset never recolours or removes existing keys.
Figure preview
Synthetic values; previews show the first 10 categories only. Exports include every key.
3. Save & export
Save JSON or CSV and import it next time. R/Python helpers reject unknown categories. The HEX-only list does not preserve category keys.
Optional · Apply colours to a data table
Apply to figure data
Match a category column by name, not row position. Non-colour values and row order are preserved. Unknown keys block export; existing colour conflicts need explicit permission to replace.
For gene/module data, open Cytoscape Import Table Builder and enable its saved-mapping option. Existing gene-level overrides are conflicts in strict mapping mode, not silently preserved.