Color

#081821

#081821
hex#081821
rgbrgb(8, 24, 33)
hslhsl(202, 61%, 8%)
oklchoklch(0.2 0.028 235.1)
Closest name: Black Stallion (#0e191c)Relative luminance 0.0081

Colors that go with #081821

Charcoal, Amber and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#211108

#08211e · #080b21

#210818 · #182108

Split-complementary

Open in tool →

#21080b · #211e08

#1e0821 · #211108 · #0b2108

Contrast

#081821 as textRatioAAAA largeAAAFix
Aaon white
18.06:1passpasspassPasses AAA — no fix needed.
Aaon black
1.16:1failfailfail
  • AA: use #2a7dac as the text (4.63:1)
  • AAA: use #469fd2 as the text (7.15:1)
  • AA: or shift the background to #808080 (4.57:1)
  • AAA: or shift the background to #a3a3a3 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #081821 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#081821 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #081821
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #081821 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/081821-9cb1c4-df4e5f-1f222d-e9f1f0?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md