Color

#3766be

#3766be
hex#3766be
rgbrgb(55, 102, 190)
hslhsl(219, 55%, 48%)
oklchoklch(0.524 0.148 261.6)
Closest name: God of Rain (#4466cc)Relative luminance 0.1403

Colors that go with #3766be

Charcoal, Sea Green and Sienna 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 →

#be8f37

#37aabe · #4b37be

#be3766 · #66be37

Split-complementary

Open in tool →

#be4b37 · #aabe37

#be37aa · #be8f37 · #37be4b

Contrast

#3766be as textRatioAAAA largeAAAFix
Aaon white
5.52:1passpassfail
  • AAA: use #2e559e as the text (7.22:1)
Aaon black
3.81:1failpassfail
  • AA: use #4573c9 as the text (4.55:1)
  • AAA: use #7597d7 as the text (7.16:1)
  • AA: or shift the background to #e8e8e8 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3766be as the background.

Brands using this color

Fonts for this mood

#3766be reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3766be
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 #3766be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3766be-9ca5c4-df664e-211f2d-e9f0f1?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