#F5F7FA
#D9E1EA
#3B6EA5
#1C2733
#3B6EA5 is a medium, moderately saturated blue color, closest to Cerulean and near Cerulean and Lapis. In OKLCH it has 53% lightness and 0.10 chroma at hue 252°. Blue suggests trust, stability and calm; it is the most used hue in corporate and tech branding, which makes #3B6EA5 a natural choice for links, primary buttons, finance and technology. It appears in 1 ColorSwoop palette.
#3B6EA5rgb(59, 110, 165)hsl(211, 47%, 44%)64, 33, 0, 35--cerulean5.3:1 white · 3.96:1 blackWhite text passes WCAG AA on #3B6EA5 (5.3:1); black does not, so keep dark text off it.
For a calm scheme pair #3B6EA5 with its analogous neighbors #3BA3A5 and #3D3BA5; for contrast use its complement #A5723B as a small accent, and anchor everything with a neutral such as #F5F5F7.
--cerulean: #3B6EA5;
$cerulean: #3B6EA5;
colors: { 'cerulean': '#3B6EA5' }