Color

#37486d

#37486d
hex#37486d
rgbrgb(55, 72, 109)
hslhsl(221, 33%, 32%)
oklchoklch(0.405 0.066 264.8)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.0655

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#6d5b37

#37636d · #41376d

#6d3748 · #486d37

Split-complementary

Open in tool →

#6d4137 · #636d37

#6d3763 · #6d5b37 · #376d41

Contrast

#37486d as textRatioAAAA largeAAAFix
Aaon white
9.09:1passpasspassPasses AAA — no fix needed.
Aaon black
2.31:1failfailfail
  • AA: use #5c76ad as the text (4.65:1)
  • AAA: use #8295c0 as the text (7.01:1)
  • AA: or shift the background to #b8b8b8 (4.58:1)
  • AAA: or shift the background to #e3e3e3 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37486d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #37486d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #37486d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37486d-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