Color

#406e82

#406e82
hex#406e82
rgbrgb(64, 110, 130)
hslhsl(198, 34%, 38%)
oklchoklch(0.513 0.06 227.8)
Closest name: Calypso (#3d7188)Relative luminance 0.1385

Colors that go with #406e82

Charcoal, Sienna 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.

Real palettes that use #406e82

Tints & shades

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

Harmonies

Complementary

Open in tool →

#825440

#408275 · #404d82

#82406e · #6e8240

Split-complementary

Open in tool →

#82404d · #827540

#754082 · #825440 · #4d8240

Contrast

#406e82 as textRatioAAAA largeAAAFix
Aaon white
5.57:1passpassfail
  • AAA: use #365d6d as the text (7.13:1)
Aaon black
3.77:1failpassfail
  • AA: use #487d93 as the text (4.63:1)
  • AAA: use #699eb5 as the text (7.16:1)
  • AA: or shift the background to #e8e8e8 (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 #406e82 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 #406e82
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 #406e82 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/406e82-9cb3c4-df4e69-1f232d-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