Miss Lemon was always as chic as her famous detective employer.
I am very interested in fashion and was very clear about how I wanted her to appear: Very tailored. No embellishment, no frills to speak of and strong colour. Which is why we tended towards burgundy and navy and that family of colour, to be very strong and striking. Celadon green was one of my favourites, too.
– Pauline Moran, English actress
In this quote Ms. Moran is speaking of costumes for her role as Miss Lemon in Agatha Christie’s Poirot television series.
In the books Miss Lemon is described as dowdy and unattractive. Well damn, Agatha, that’s no fun! Lucky for us Ms. Moran would have none of that and insisted on adding a bit of panache to her character.
OverDressed for Life 
Love Poirot!