Color

#406f7d

#406f7d
hex#406f7d
rgbrgb(64, 111, 125)
hslhsl(194, 32%, 37%)
oklchoklch(0.514 0.056 219)
Closest name: Calypso (#3d7188)Relative luminance 0.1394

Colors that go with #406f7d

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 #406f7d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7d4e40

#407d6c · #40507d

#7d406e · #6e7d40

Split-complementary

Open in tool →

#7d4050 · #7d6c40

#6c407d · #7d4e40 · #507d40

Contrast

#406f7d as textRatioAAAA largeAAAFix
Aaon white
5.54:1passpassfail
  • AAA: use #365d68 as the text (7.19:1)
Aaon black
3.79:1failpassfail
  • AA: use #497d8d as the text (4.6:1)
  • AAA: use #649eaf as the text (7.05:1)
  • AA: or shift the background to #e8e8e8 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #406f7d 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 #406f7d
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 #406f7d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/406f7d-9cb6c4-df4e72-1f242d-e9f1ef?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