Color

#3764d7

#3764d7
hex#3764d7
rgbrgb(55, 100, 215)
hslhsl(223, 67%, 53%)
oklchoklch(0.538 0.184 264.7)
Closest name: God of Rain (#4466cc)Relative luminance 0.1483

Colors that go with #3764d7

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 →

#d7aa37

#37b5d7 · #5a37d7

#d73764 · #64d737

Split-complementary

Open in tool →

#d75a37 · #b5d737

#d737b5 · #d7aa37 · #37d75a

Contrast

#3764d7 as textRatioAAAA largeAAAFix
Aaon white
5.29:1passpassfail
  • AAA: use #2550bb as the text (7.13:1)
Aaon black
3.97:1failpassfail
  • AA: use #4872db as the text (4.71:1)
  • AAA: use #7796e4 as the text (7.27:1)
  • AA: or shift the background to #ededed (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 #3764d7 as the background.

Brands using this color

Fonts for this mood

#3764d7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3764d7
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 #3764d7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3764d7-9ca3c4-df704e-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