#F6F0E7
#E3D6C3
#2A7F7A
#173F3D
#173F3D is a dark, moderately saturated gray color, closest to Gunmetal and near Gunmetal and Onyx. In OKLCH it has 34% lightness and 0.04 chroma at hue 191°. Gray suggests neutrality and balance; it lets other colors lead, which makes #173F3D a natural choice for text, borders and interface chrome. It appears in 1 ColorSwoop palette.
#173F3Drgb(23, 63, 61)hsl(177, 47%, 17%)63, 0, 3, 75--gunmetal11.57:1 white · 1.81:1 blackWhite text passes WCAG AA on #173F3D (11.57:1); black does not, so keep dark text off it.
For a calm scheme pair #173F3D with its analogous neighbors #174029 and #172D40; for contrast use its complement #401719 as a small accent, and anchor everything with a neutral such as #F5F5F7.
--gunmetal: #173F3D;
$gunmetal: #173F3D;
colors: { 'gunmetal': '#173F3D' }