Color

#2b312e

#2b312e
hex#2b312e
rgbrgb(43, 49, 46)
hslhsl(150, 7%, 18%)
oklchoklch(0.306 0.01 164.3)
Closest name: Aztec (#293432)Relative luminance 0.0291

Colors that go with #2b312e

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 →

#312b2e

#2b312b · #2b3131

#2e2b31 · #312e2b

Split-complementary

Open in tool →

#312b31 · #312b2b

#2b2b31 · #312b2e · #31312b

Contrast

#2b312e as textRatioAAAA largeAAAFix
Aaon white
13.28:1passpasspassPasses AAA — no fix needed.
Aaon black
1.58:1failfailfail
  • AA: use #687870 as the text (4.51:1)
  • AAA: use #8a9991 as the text (7.05:1)
  • AA: or shift the background to #999999 (4.66:1)
  • AAA: or shift the background to #bdbdbd (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 #2b312e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2b312e reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b312e
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 #2b312e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b312e-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