Dye for the people introduces 5 new block types including solid blocks, transparent blocks, carpets and glass panes, each of which can be dyed into 16 million colours (full RGB set) for use in pixel art and similar projects.
A simple example of shading. Far more colours than this are accessible.
Every single block is a different colour!
New blocks can be crafted with any combination of minecraft dyes to make custom coloured blocks. Placed blocks can be further dyed by right clicking with additional dyes.
With 4 quartz and 5 glass, you can craft 4 quartz glass. This can then be smelted in a blast furnace to make glazed quartz glass, which can be crafted into glazed quartz glass panes. All of these can be dyed into the full range of colours.
Leather and white dye are used to craft the basic dyeable white leather block, which can be further crafted to dyeable leather carpet.