#2C3E50
#7F8C8D
#BDC3C7
#ECF0F1
#2C3E50 is a dark, muted blue color, closest to Charcoal and near Charcoal and Iron. In OKLCH it has 36% lightness and 0.04 chroma at hue 249°. Blue suggests trust, stability and calm; it is the most used hue in corporate and tech branding, which makes #2C3E50 a natural choice for links, primary buttons, finance and technology. It appears in 1 ColorSwoop palette.
#2C3E50rgb(44, 62, 80)hsl(210, 29%, 24%)45, 22, 0, 69--charcoal10.98:1 white · 1.91:1 blackWhite text passes WCAG AA on #2C3E50 (10.98:1); black does not, so keep dark text off it.
For a calm scheme pair #2C3E50 with its analogous neighbors #2B4F4F and #2B2B4F; for contrast use its complement #4F3D2B as a small accent, and anchor everything with a neutral such as #F5F5F7.
--charcoal: #2C3E50;
$charcoal: #2C3E50;
colors: { 'charcoal': '#2C3E50' }