Color

#2d273a

#2d273a
hex#2d273a
rgbrgb(45, 39, 58)
hslhsl(259, 20%, 19%)
oklchoklch(0.288 0.035 298.7)
Closest name: Haiti (#2c2a35)Relative luminance 0.0231

Colors that go with #2d273a

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 →

#343a27

#272a3a · #37273a

#3a2d27 · #273a2d

Split-complementary

Open in tool →

#3a3727 · #2a3a27

#3a272a · #343a27 · #273a37

Contrast

#2d273a as textRatioAAAA largeAAAFix
Aaon white
14.36:1passpasspassPasses AAA — no fix needed.
Aaon black
1.46:1failfailfail
  • AA: use #7e6f9f as the text (4.66:1)
  • AAA: use #9c91b6 as the text (7.14:1)
  • AA: or shift the background to #919191 (4.55:1)
  • AAA: or shift the background to #b5b5b5 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d273a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2d273a reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d273a
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 #2d273a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d273a-ad9cc4-dfc74e-2a1f2d-e9ebf1?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