Drafting IEC publications
Grey scale recommendations
If shading is necessary in figures, tables or text, grey scales shall be carefully chosen so as to be clearly distinguishable from each other. Furthermore, cross-hatching to produce greyscale effect should be avoided as this causes compatibility problems between software.
RGB colour scheme values as used in the IEC Graphic Charter:
- Using colours in IEC documents - general guidelines
- Increasing readability by using colours
- Using text in figures - how to match text and background colours