Getting some really old supplies out now ... my pearl embossing powders from about 18 years ago! In the pots they look the same colour (except the gold). If you use versa mark ink and white paper, you can hardly see the colour.
BUT ... if you use black card, it just pops with lovely pearl shimmer colour!
A close up ... in real life the colours match, but I think the camera changes the shimmer colour.
My entry for ...
... Retro Sketch Challenge #237
... Inspirational Challenge #120 : Black and 1 Colour