Color

#2543bb

#2543bb
hex#2543bb
rgbrgb(37, 67, 187)
hslhsl(228, 67%, 44%)
oklchoklch(0.444 0.191 266.9)
Closest name: Denim (#2243b6)Relative luminance 0.08

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#bb9d25

#258ebb · #5225bb

#bb2543 · #43bb25

Split-complementary

Open in tool →

#bb5225 · #8ebb25

#bb258e · #bb9d25 · #25bb52

Contrast

#2543bb as textRatioAAAA largeAAAFix
Aaon white
8.08:1passpasspassPasses AAA — no fix needed.
Aaon black
2.6:1failfailfail
  • AA: use #506cdc as the text (4.52:1)
  • AAA: use #7f94e6 as the text (7.28:1)
  • AA: or shift the background to #c2c2c2 (4.54:1)
  • AAA: or shift the background to #f0f0f0 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2543bb 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

#2543bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2543bb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #2543bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2543bb-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