#3B3F47
#8C93A0
#D5DAE3
#F7F8FA
#3B3F47 is a dark, nearly neutral gray color, closest to Iron and near Iron and Charcoal. In OKLCH it has 37% lightness and 0.01 chroma at hue 264°. Gray suggests neutrality and balance; it lets other colors lead, which makes #3B3F47 a natural choice for text, borders and interface chrome. It appears in 1 ColorSwoop palette.
#3B3F47rgb(59, 63, 71)hsl(220, 9%, 25%)17, 11, 0, 72--iron10.56:1 white · 1.99:1 blackWhite text passes WCAG AA on #3B3F47 (10.56:1); black does not, so keep dark text off it.
For a calm scheme pair #3B3F47 with its analogous neighbors #3A4445 and #3C3A45; for contrast use its complement #45423A as a small accent, and anchor everything with a neutral such as #F5F5F7.
--iron: #3B3F47;
$iron: #3B3F47;
colors: { 'iron': '#3B3F47' }