Color

#2b312f

#2b312f
hex#2b312f
rgbrgb(43, 49, 47)
hslhsl(160, 7%, 18%)
oklchoklch(0.307 0.009 173.7)
Closest name: Aztec (#293432)Relative luminance 0.0292

Colors that go with #2b312f

Amber, Blue and Blush Pink 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 →

#312b2d

#2b312c · #2b3031

#2f2b31 · #312f2b

Split-complementary

Open in tool →

#312b30 · #312c2b

#2c2b31 · #312b2d · #30312b

Contrast

#2b312f as textRatioAAAA largeAAAFix
Aaon white
13.27:1passpasspassPasses AAA — no fix needed.
Aaon black
1.58:1failfailfail
  • AA: use #687873 as the text (4.52:1)
  • AAA: use #8a9994 as the text (7.06:1)
  • AA: or shift the background to #999999 (4.66:1)
  • AAA: or shift the background to #bdbdbd (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 #2b312f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2b312f reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b312f
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 #2b312f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b312f-a2beb0-c859d4-1f2d2b-eaf1e9?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