Color

#0b040b

#0b040b
hex#0b040b
rgbrgb(11, 4, 11)
hslhsl(300, 47%, 3%)
oklchoklch(0.125 0.024 326.9)
Closest name: Black Metal (#060606)Relative luminance 0.0018

Colors that go with #0b040b

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 →

#040b04

#08040b · #0b0408

#0b0b04 · #040b0b

Split-complementary

Open in tool →

#080b04 · #040b08

#0b0804 · #040b04 · #04080b

Contrast

#0b040b as textRatioAAAA largeAAAFix
Aaon white
20.26:1passpasspassPasses AAA — no fix needed.
Aaon black
1.04:1failfailfail
  • AA: use #b842b8 as the text (4.51:1)
  • AAA: use #ce78ce as the text (7.2:1)
  • AA: or shift the background to #787878 (4.59:1)
  • AAA: or shift the background to #999999 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b040b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0b040b reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b040b
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 #0b040b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b040b-c19fbd-95cb62-2d1f27-ede9f1?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