Color

#2b181a

#2b181a
hex#2b181a
rgbrgb(43, 24, 26)
hslhsl(354, 28%, 13%)
oklchoklch(0.235 0.031 12.8)
Closest name: Black Cherry (#2c1620)Relative luminance 0.0124

Colors that go with #2b181a

Charcoal, Dark Olive Green and Sienna 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 #2b181a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#182a29

#2a1823 · #2a1f18

#1a2a18 · #181a2a

Split-complementary

Open in tool →

#182a1f · #18232a

#232a18 · #182a29 · #1f182a

Contrast

#2b181a as textRatioAAAA largeAAAFix
Aaon white
16.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #a76269 as the text (4.59:1)
  • AAA: use #bd898f as the text (7.14:1)
  • AA: or shift the background to #858585 (4.56:1)
  • AAA: or shift the background to #a8a8a8 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b181a as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#2b181a reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b181a
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 #2b181a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b181a-c49d9c-62cb8e-2d241f-f1e9ee?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