Card Color picker missing HEX from Tag Color picker

[croulibri]

Nextcloud 34.0.2
Deck 1.18.0.3

When I select a color for a tag, I have these options:

But when I select a color for a card, I only have these options:

I am missing the HEX value (or other system) to be able to choose the exact same color for several cards.

Would it be possible to implement the same color picker for Card than for Tags ?

Thanks for your understanding