Color

#3765c8

#3765c8
hex#3765c8
rgbrgb(55, 101, 200)
hslhsl(221, 57%, 50%)
oklchoklch(0.529 0.162 263.2)
Closest name: God of Rain (#4466cc)Relative luminance 0.1429

Colors that go with #3765c8

Charcoal, Sea Green 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 →

#c89a37

#37aec8 · #5137c8

#c83765 · #65c837

Split-complementary

Open in tool →

#c85137 · #aec837

#c837ae · #c89a37 · #37c851

Contrast

#3765c8 as textRatioAAAA largeAAAFix
Aaon white
5.44:1passpassfail
  • AAA: use #2e55a8 as the text (7.04:1)
Aaon black
3.86:1failpassfail
  • AA: use #4771cd as the text (4.51:1)
  • AAA: use #7796da as the text (7.16:1)
  • AA: or shift the background to #ebebeb (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3765c8 as the background.

Brands using this color

Fonts for this mood

#3765c8 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3765c8
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 #3765c8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3765c8-9ca4c4-df6b4e-211f2d-e9eff1?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