Color

#2544c1

#2544c1
hex#2544c1
rgbrgb(37, 68, 193)
hslhsl(228, 68%, 45%)
oklchoklch(0.451 0.198 266.8)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0838

Colors that go with #2544c1

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 →

#c1a225

#2592c1 · #5425c1

#c12544 · #44c125

Split-complementary

Open in tool →

#c15425 · #92c125

#c12592 · #c1a225 · #25c154

Contrast

#2544c1 as textRatioAAAA largeAAAFix
Aaon white
7.85:1passpasspassPasses AAA — no fix needed.
Aaon black
2.68:1failfailfail
  • AA: use #4f6cde as the text (4.53:1)
  • AAA: use #7e93e7 as the text (7.21:1)
  • AA: or shift the background to #c4c4c4 (4.5:1)
  • AAA: or shift the background to #f2f2f2 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2544c1 as the background.

Brands using this color

Fonts for this mood

#2544c1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2544c1
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 #2544c1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2544c1-9c9fc4-df7c4e-231f2d-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