Color

#2549cb

#2549cb
hex#2549cb
rgbrgb(37, 73, 203)
hslhsl(227, 69%, 47%)
oklchoklch(0.47 0.205 266.2)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0947

Colors that go with #2549cb

Charcoal, Sea Green and Steel Blue 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 →

#cba725

#259ccb · #5425cb

#cb2549 · #49cb25

Split-complementary

Open in tool →

#cb5425 · #9ccb25

#cb259c · #cba725 · #25cb54

Contrast

#2549cb as textRatioAAAA largeAAAFix
Aaon white
7.26:1passpasspassPasses AAA — no fix needed.
Aaon black
2.89:1failfailfail
  • AA: use #4e6edf as the text (4.62:1)
  • AAA: use #7991e6 as the text (7.01:1)
  • AA: or shift the background to #cccccc (4.52:1)
  • AAA: or shift the background to #fcfcfc (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2549cb as the background.

Brands using this color

Fonts for this mood

#2549cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2549cb
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 #2549cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2549cb-9ca0c4-df7a4e-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