#000000
#3B3B3B
#EEE4CF
#FFFDF8
#3B3B3B is a dark, nearly neutral gray color, closest to Iron and near Iron and Onyx. In OKLCH it has 35% lightness and 0.00 chroma at hue 0°. Gray suggests neutrality and balance; it lets other colors lead, which makes #3B3B3B a natural choice for text, borders and interface chrome. It appears in 1 ColorSwoop palette.
#3B3B3Brgb(59, 59, 59)hsl(0, 0%, 23%)0, 0, 0, 77--iron11.2:1 white · 1.87:1 blackWhite text passes WCAG AA on #3B3B3B (11.2:1); black does not, so keep dark text off it.
For a calm scheme pair #3B3B3B with its analogous neighbors #3B3B3B and #3B3B3B; for contrast use its complement #3B3B3B as a small accent, and anchor everything with a neutral such as #F5F5F7.
--iron: #3B3B3B;
$iron: #3B3B3B;
colors: { 'iron': '#3B3B3B' }