Color

#2b73bf

#2b73bf
hex#2b73bf
rgbrgb(43, 115, 191)
hslhsl(211, 63%, 46%)
oklchoklch(0.55 0.138 252.8)
Closest name: Campanula (#3473b7)Relative luminance 0.1654

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf782b

#2bbdbf · #2e2bbf

#bf2b73 · #73bf2b

Split-complementary

Open in tool →

#bf2e2b · #bdbf2b

#bf2bbd · #bf782b · #2bbf2e

Contrast

#2b73bf as textRatioAAAA largeAAAFix
Aaon white
4.88:1passpassfail
  • AAA: use #225a96 as the text (7.07:1)
Aaon black
4.31:1failpassfail
  • AA: use #2d78c8 as the text (4.63:1)
  • AAA: use #5d99da as the text (7.03:1)
  • AA: or shift the background to #f7f7f7 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b73bf as the background.

Brands using this color

Fonts for this mood

#2b73bf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b73bf
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 #2b73bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b73bf-9cabc4-df534e-1f202d-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