#0D0221
#5A189A
#39FF14
#FF8C00
#0D0221 is a dark, highly saturated black color, closest to Obsidian and near Obsidian and Licorice. In OKLCH it has 14% lightness and 0.07 chroma at hue 296°. Black suggests sophistication, contrast and drama, which makes #0D0221 a natural choice for text, luxury branding and dark interfaces. It appears in 2 ColorSwoop palettes.
#0D0221rgb(13, 2, 33)hsl(261, 89%, 7%)61, 94, 0, 87--obsidian20.04:1 white · 1.05:1 blackWhite text passes WCAG AA on #0D0221 (20.04:1); black does not, so keep dark text off it.
For a calm scheme pair #0D0221 with its analogous neighbors #020722 and #1D0222; for contrast use its complement #172202 as a small accent, and anchor everything with a neutral such as #F5F5F7.
--obsidian: #0D0221;
$obsidian: #0D0221;
colors: { 'obsidian': '#0D0221' }