Color

#2b376e

#2b376e
hex#2b376e
rgbrgb(43, 55, 110)
hslhsl(229, 44%, 30%)
oklchoklch(0.357 0.096 271.5)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0437

Colors that go with #2b376e

Steel Blue, 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 →

#6e622b

#2b596e · #402b6e

#6e2b37 · #376e2b

Split-complementary

Open in tool →

#6e402b · #596e2b

#6e2b59 · #6e622b · #2b6e40

Contrast

#2b376e as textRatioAAAA largeAAAFix
Aaon white
11.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.87:1failfailfail
  • AA: use #5d70c0 as the text (4.54:1)
  • AAA: use #8693d0 as the text (7.1:1)
  • AA: or shift the background to #a6a6a6 (4.6:1)
  • AAA: or shift the background to #cfcfcf (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b376e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#2b376e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b376e
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 #2b376e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b376e-9c9fc4-df7e4e-231f2d-e9eef1?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