#E0FBFC
#98E2E8
#9986D3
#0B3C42
#0B3C42 is a dark, moderately saturated gray color, closest to Gunmetal and near Gunmetal and Charcoal Blue. In OKLCH it has 33% lightness and 0.05 chroma at hue 207°. Gray suggests neutrality and balance; it lets other colors lead, which makes #0B3C42 a natural choice for text, borders and interface chrome. It appears in 3 ColorSwoop palettes.
#0B3C42rgb(11, 60, 66)hsl(187, 71%, 15%)83, 9, 0, 74--gunmetal12.07:1 white · 1.74:1 blackWhite text passes WCAG AA on #0B3C42 (12.07:1); black does not, so keep dark text off it.
For a calm scheme pair #0B3C42 with its analogous neighbors #0B412D and #0B2041; for contrast use its complement #41110B as a small accent, and anchor everything with a neutral such as #F5F5F7.
--gunmetal: #0B3C42;
$gunmetal: #0B3C42;
colors: { 'gunmetal': '#0B3C42' }