Color

#3763ae

#3763ae
hex#3763ae
rgbrgb(55, 99, 174)
hslhsl(218, 52%, 45%)
oklchoklch(0.507 0.129 260.4)
Closest name: Denim (#1560bd)Relative luminance 0.1279

Colors that go with #3763ae

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 →

#ae8337

#379fae · #4737ae

#ae3763 · #63ae37

Split-complementary

Open in tool →

#ae4737 · #9fae37

#ae379f · #ae8337 · #37ae47

Contrast

#3763ae as textRatioAAAA largeAAAFix
Aaon white
5.9:1passpassfail
Aaon black
3.56:1failpassfail
  • AA: use #4574c4 as the text (4.55:1)
  • AAA: use #7396d3 as the text (7.03:1)
  • AA: or shift the background to #e3e3e3 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3763ae as the background.

Brands using this color

Fonts for this mood

#3763ae reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3763ae
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 #3763ae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3763ae-9ca6c4-df644e-201f2d-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