Colors
Relevant HN
https://news.ycombinator.com/item?id=21780659
Related
Design
Curated color lists
https://www.happyhues.co/
https://www.colourlovers.com/
Articles
https://refactoringui.com/previews/building-your-color-palette/
Palettes
https://www.happyhues.co/palettes/5
Themes
Synthwave
https://marketplace.visualstudio.com/items?itemName=jaredkent.laserwave
Color pickers
Data visualization color picker
https://learnui.design/tools/data-color-picker.html