Slate Mint is airy rather than sugary. It makes a gentle background for dark text, while charcoal or rust accents keep the palette from drifting too soft.
Tints
#a3bfc9
#acc5ce
#b5ccd4
#bfd2d9
#c8d9df
#d1dfe4
#dae5e9
#e3ecef
#edf2f4
#f6f9fa
#ffffff
Shadows
#a3bfc9
#93acb5
#8299a1
#72868d
#627379
#526064
#414c50
#31393c
#212628
#101314