asked the Minister for Posts and Telegraphs if stamps can be printed in four colours: and, if so, why the stamp design committee are so conservative in their use of colours.
Ceisteanna—Questions. Oral Answers. - Stamp Design Colours.
185.
The answer to the first part of the question is "yes". The extent to which different colours should be used in any particular case is obviously a matter of taste and judgement. I have found no reason to disagree with the advice given to me by the committee.