Color

#2e73b8

#2e73b8
hex#2e73b8
rgbrgb(46, 115, 184)
hslhsl(210, 60%, 45%)
oklchoklch(0.546 0.128 251.4)
Closest name: Campanula (#3473b7)Relative luminance 0.163

Colors that go with #2e73b8

Charcoal, Crimson and Sea Green 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 →

#b8732e

#2eb8b8 · #2e2eb8

#b82e73 · #73b82e

Split-complementary

Open in tool →

#b82e2e · #b8b82e

#b82eb8 · #b8732e · #2eb82e

Contrast

#2e73b8 as textRatioAAAA largeAAAFix
Aaon white
4.93:1passpassfail
  • AAA: use #24598f as the text (7.24:1)
Aaon black
4.26:1failpassfail
  • AA: use #3078c0 as the text (4.57:1)
  • AAA: use #609cd7 as the text (7.23:1)
  • AA: or shift the background to #f5f5f5 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2e73b8 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2e73b8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2e73b8
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 #2e73b8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2e73b8-9cabc4-df514e-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