Color

#186ebf

#186ebf
hex#186ebf
rgbrgb(24, 110, 191)
hslhsl(209, 78%, 42%)
oklchoklch(0.534 0.148 252.1)
Closest name: Campanula (#3473b7)Relative luminance 0.1511

Colors that go with #186ebf

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 →

#bf6818

#18bfbc · #181abf

#bf186e · #6ebf18

Split-complementary

Open in tool →

#bf181a · #bfbc18

#bc18bf · #bf6818 · #1abf18

Contrast

#186ebf as textRatioAAAA largeAAAFix
Aaon white
5.22:1passpassfail
  • AAA: use #13599a as the text (7.18:1)
Aaon black
4.02:1failpassfail
  • AA: use #1976cc as the text (4.5:1)
  • AAA: use #499ce9 as the text (7.22:1)
  • AA: or shift the background to #f0f0f0 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #186ebf as the background.

Brands using this color

Fonts for this mood

#186ebf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #186ebf
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 #186ebf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/186ebf-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