Matcha palette
Ember Library
From #aa1a00 ink through #da5039, #fa6d55, #ff8872 to #ffb7a9 light, Ember Library is a analogous progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
redmatchafive-stop
#aa1a00
#da5039
#fa6d55
#ff8872
#ffb7a9
The generator opens with #aa1a00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.