Color

#3764a0

#3764a0
hex#3764a0
rgbrgb(55, 100, 160)
hslhsl(214, 49%, 42%)
oklchoklch(0.5 0.108 256.2)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1246

Colors that go with #3764a0

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 →

#a07237

#3799a0 · #3e37a0

#a03764 · #64a037

Split-complementary

Open in tool →

#a03e37 · #99a037

#a03799 · #a07237 · #37a03e

Contrast

#3764a0 as textRatioAAAA largeAAAFix
Aaon white
6.01:1passpassfail
  • AAA: use #30588d as the text (7.23:1)
Aaon black
3.49:1failpassfail
  • AA: use #4177be as the text (4.61:1)
  • AAA: use #6f98ce as the text (7.06:1)
  • AA: or shift the background to #e0e0e0 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3764a0 as the background.

Brands using this color

Fonts for this mood

#3764a0 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3764a0
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 #3764a0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3764a0-9ca9c4-df5a4e-1f1f2d-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