# Color Scheme ## Palettes - [U.S. Brand Colors](https://usbrandcolors.com) - [Chinese Color](https://chinesecolor.org) - [Apple Color Specification for Developers](https://developer.apple.com/design/human-interface-guidelines/color#Specifications) - [2014 Material Design Palette](https://m1.material.io/style/color.html#color-color-palette) ## Color Scheme for Tags - Use [[color-code|Hex color code]]. - Constraints - `base = 0xFF >> 1 == 0x7F` - `avg_offset = 0xFF >> 2 ==` Expressed in [[color-code|color codes]]. - Monochrome Collection for sub-categories and ordered categories. - Complementary Color Matching for categories of larger distinction. - Adjacent Color Matching for similar categories.