Color

#376281

#376281
hex#376281
rgbrgb(55, 98, 129)
hslhsl(205, 40%, 36%)
oklchoklch(0.479 0.069 241.6)
Closest name: Atlantis (#336172)Relative luminance 0.1113

Colors that go with #376281

Charcoal, Royal Blue 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 →

#815637

#37817a · #373d81

#813762 · #628137

Split-complementary

Open in tool →

#81373d · #817a37

#7a3781 · #815637 · #3d8137

Contrast

#376281 as textRatioAAAA largeAAAFix
Aaon white
6.51:1passpassfail
  • AAA: use #345c79 as the text (7.11:1)
Aaon black
3.23:1failpassfail
  • AA: use #457aa1 as the text (4.55:1)
  • AAA: use #699bbf as the text (7.04:1)
  • AA: or shift the background to #d9d9d9 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #376281 as the background.

Brands using this color

Fonts for this mood

#376281 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #376281
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 #376281 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/376281-9cafc4-df4e58-1f212d-e9f1f0?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