Color

#10040b

#10040b
hex#10040b
rgbrgb(16, 4, 11)
hslhsl(325, 60%, 4%)
oklchoklch(0.134 0.03 343.2)
Closest name: Knight Rider (#0f0707)Relative luminance 0.0022

Colors that go with #10040b

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.

Real palettes that use #10040b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#041009

#0f0410 · #100405

#0b1004 · #040b10

Split-complementary

Open in tool →

#051004 · #04100f

#100f04 · #041009 · #040510

Contrast

#10040b as textRatioAAAA largeAAAFix
Aaon white
20.11:1passpasspassPasses AAA — no fix needed.
Aaon black
1.04:1failfailfail
  • AA: use #cd378f as the text (4.54:1)
  • AAA: use #dc74b1 as the text (7.18:1)
  • AA: or shift the background to #787878 (4.55:1)
  • AAA: or shift the background to #999999 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10040b as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#10040b reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10040b
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 #10040b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10040b-c19faf-69cb62-2d1f21-f0e9f1?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