Color

#2a181b

#2a181b
hex#2a181b
rgbrgb(42, 24, 27)
hslhsl(350, 27%, 13%)
oklchoklch(0.234 0.029 8.7)
Closest name: Black Cherry (#2c1620)Relative luminance 0.0122

Colors that go with #2a181b

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 →

#182a27

#2a1824 · #2a1e18

#1b2a18 · #181b2a

Split-complementary

Open in tool →

#182a1e · #18242a

#242a18 · #182a27 · #1e182a

Contrast

#2a181b as textRatioAAAA largeAAAFix
Aaon white
16.87:1passpasspassPasses AAA — no fix needed.
Aaon black
1.24:1failfailfail
  • AA: use #a6646f as the text (4.67:1)
  • AAA: use #bc8a93 as the text (7.19:1)
  • AA: or shift the background to #858585 (4.57:1)
  • AAA: or shift the background to #a8a8a8 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a181b 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

#2a181b reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a181b
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 #2a181b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a181b-c49c9e-62cb87-2d231f-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