Color

#2b273f

#2b273f
hex#2b273f
rgbrgb(43, 39, 63)
hslhsl(250, 24%, 20%)
oklchoklch(0.289 0.043 291.1)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0232

Colors that go with #2b273f

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 →

#3b3f27

#272f3f · #37273f

#3f2b27 · #273f2b

Split-complementary

Open in tool →

#3f3727 · #2f3f27

#3f272f · #3b3f27 · #273f37

Contrast

#2b273f as textRatioAAAA largeAAAFix
Aaon white
14.34:1passpasspassPasses AAA — no fix needed.
Aaon black
1.46:1failfailfail
  • AA: use #776ea6 as the text (4.57:1)
  • AAA: use #9790bb as the text (7.02:1)
  • AA: or shift the background to #919191 (4.55:1)
  • AAA: or shift the background to #b8b8b8 (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b273f 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

#2b273f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b273f
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 #2b273f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b273f-a79cc4-dfb14e-281f2d-e9ecf1?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