Color

#2b3d6e

#2b3d6e
hex#2b3d6e
rgbrgb(43, 61, 110)
hslhsl(224, 44%, 30%)
oklchoklch(0.371 0.087 266.9)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0498

Colors that go with #2b3d6e

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 →

#6e5c2b

#2b5e6e · #3b2b6e

#6e2b3d · #3d6e2b

Split-complementary

Open in tool →

#6e3b2b · #5e6e2b

#6e2b5e · #6e5c2b · #2b6e3b

Contrast

#2b3d6e as textRatioAAAA largeAAAFix
Aaon white
10.52:1passpasspassPasses AAA — no fix needed.
Aaon black
2:1failfailfail
  • AA: use #5672bd as the text (4.54:1)
  • AAA: use #8296ce as the text (7.2:1)
  • AA: or shift the background to #ababab (4.58:1)
  • AAA: or shift the background to #d4d4d4 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b3d6e 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

#2b3d6e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b3d6e
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 #2b3d6e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b3d6e-9ca2c4-df724e-221f2d-e9eff1?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