Color

#40486d

#40486d
hex#40486d
rgbrgb(64, 72, 109)
hslhsl(229, 26%, 34%)
oklchoklch(0.411 0.063 274)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.0683

Colors that go with #40486d

Steel Blue, Blue and Cadet Blue 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 →

#6d6540

#405f6d · #4e406d

#6d4048 · #486d40

Split-complementary

Open in tool →

#6d4e40 · #5f6d40

#6d405f · #6d6540 · #406d4e

Contrast

#40486d as textRatioAAAA largeAAAFix
Aaon white
8.88:1passpasspassPasses AAA — no fix needed.
Aaon black
2.37:1failfailfail
  • AA: use #6873a6 as the text (4.59:1)
  • AAA: use #8b94bb as the text (7.05:1)
  • AA: or shift the background to #bababa (4.57:1)
  • AAA: or shift the background to #e6e6e6 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40486d 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 #40486d
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 #40486d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40486d-9c9fc4-df7e4e-231f2d-e9eef1?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