Color

#2f2839

#2f2839
hex#2f2839
rgbrgb(47, 40, 57)
hslhsl(265, 18%, 19%)
oklchoklch(0.292 0.032 303.3)
Closest name: Haiti (#2c2a35)Relative luminance 0.0242

Colors that go with #2f2839

Dark Olive Green, Sea 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#323928

#282939 · #382839

#392f28 · #28392f

Split-complementary

Open in tool →

#393828 · #293928

#392829 · #323928 · #283938

Contrast

#2f2839 as textRatioAAAA largeAAAFix
Aaon white
14.16:1passpasspassPasses AAA — no fix needed.
Aaon black
1.48:1failfailfail
  • AA: use #816f9b as the text (4.68:1)
  • AAA: use #9e90b2 as the text (7.09:1)
  • AA: or shift the background to #949494 (4.67:1)
  • AAA: or shift the background to #b8b8b8 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f2839 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2f2839 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f2839
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 #2f2839 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f2839-b19cc4-dfd54e-2b1f2d-e9eaf1?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