Color

#0186df

#0186df
hex#0186df
rgbrgb(1, 134, 223)
hslhsl(204, 99%, 44%)
oklchoklch(0.607 0.165 248.5)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2238

Colors that go with #0186df

Charcoal, Crimson and Copper 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 →

#df5a01

#01dfc9 · #0117df

#df0186 · #86df01

Split-complementary

Open in tool →

#df0117 · #dfc901

#c901df · #df5a01 · #17df01

Contrast

#0186df as textRatioAAAA largeAAAFix
Aaon white
3.83:1failpassfail
  • AA: use #017acb as the text (4.52:1)
  • AAA: use #015c98 as the text (7.03:1)
  • AA: or shift the background to #1a1a1a (4.54:1)
Aaon black
5.48:1passpassfail
  • AAA: use #069bfe as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0186df as the background.

Brands using this color

Fonts for this mood

#0186df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0186df
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 #0186df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0186df-9cafc4-df4e5a-1f222d-e9f1f0?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