Color

#2273bf

#2273bf
hex#2273bf
rgbrgb(34, 115, 191)
hslhsl(209, 70%, 44%)
oklchoklch(0.547 0.141 251.1)
Closest name: Campanula (#3473b7)Relative luminance 0.1636

Colors that go with #2273bf

Charcoal, Crimson and Amber 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 →

#bf6e22

#22bfbc · #2224bf

#bf2273 · #73bf22

Split-complementary

Open in tool →

#bf2224 · #bfbc22

#bc22bf · #bf6e22 · #24bf22

Contrast

#2273bf as textRatioAAAA largeAAAFix
Aaon white
4.92:1passpassfail
  • AAA: use #1b5b98 as the text (7.01:1)
Aaon black
4.27:1failpassfail
  • AA: use #2378c7 as the text (4.58:1)
  • AAA: use #529be0 as the text (7.12:1)
  • AA: or shift the background to #f5f5f5 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2273bf as the background.

Brands using this color

Fonts for this mood

#2273bf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2273bf
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 #2273bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2273bf-9cacc4-df4e4e-1f212d-e9f1f1?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