Wire insulation color designations used on the electrical circuit diagram
- BLK - black
- BRN - brown
- SNK - checkerboard pattern
- CR - cross pattern
- GRN - green
- ORN - orange
- GRY - gray
- PPL - purple
- TR - thin line pattern
- YEL - yellow
- wht - white
- BLU - blue
- STR - stripe pattern
- PNK - pink
- DK - dark
- LT - light