Color

#2b2640

#2b2640
hex#2b2640
rgbrgb(43, 38, 64)
hslhsl(252, 25%, 20%)
oklchoklch(0.287 0.047 292)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0227

Colors that go with #2b2640

Charcoal, Dark Olive Green and Sea Green 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 →

#3b4026

#262e40 · #382640

#402b26 · #26402b

Split-complementary

Open in tool →

#403826 · #2e4026

#40262e · #3b4026 · #264038

Contrast

#2b2640 as textRatioAAAA largeAAAFix
Aaon white
14.44:1passpasspassPasses AAA — no fix needed.
Aaon black
1.45:1failfailfail
  • AA: use #786ca7 as the text (4.5:1)
  • AAA: use #9b93be as the text (7.31:1)
  • AA: or shift the background to #919191 (4.58:1)
  • AAA: or shift the background to #b5b5b5 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b2640 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2b2640 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b2640
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 #2b2640 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b2640-a99cc4-dfb64e-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