Full Idea
Quarks have a property akin to electric charge, called their colour charge. It comes in three varieties, red, green and blue.
Gist of Idea
Quarks have red, green or blue colour charge (akin to electric charge)
Source
New Scientist writers (Why the Universe Exists [2017], 02)
Book Reference
New Scientist writers: 'Why the Universe Exists' [John Murray 2017], p.26
Related Idea
Idea 21148 The strong force is repulsive at short distances, strong at medium, and fades at long [New Sci.]