Color

#40717d

#40717d
hex#40717d
rgbrgb(64, 113, 125)
hslhsl(192, 32%, 37%)
oklchoklch(0.519 0.056 215.3)
Closest name: Calypso (#3d7188)Relative luminance 0.1438

Colors that go with #40717d

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 #40717d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7d4c40

#407d6a · #40527d

#7d4070 · #707d40

Split-complementary

Open in tool →

#7d4052 · #7d6a40

#6a407d · #7d4c40 · #527d40

Contrast

#40717d as textRatioAAAA largeAAAFix
Aaon white
5.42:1passpassfail
  • AAA: use #365e68 as the text (7.1:1)
Aaon black
3.88:1failpassfail
  • AA: use #477d8a as the text (4.57:1)
  • AAA: use #619eae as the text (7.01:1)
  • AA: or shift the background to #ebebeb (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40717d 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 #40717d
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 #40717d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40717d-a2b5be-df4e77-1f242d-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