Color

#40647d

#40647d
hex#40647d
rgbrgb(64, 100, 125)
hslhsl(205, 32%, 37%)
oklchoklch(0.486 0.058 239.8)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1169

Colors that go with #40647d

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7d5940

#407d78 · #40457d

#7d4063 · #637d40

Split-complementary

Open in tool →

#7d4045 · #7d7840

#78407d · #7d5940 · #457d40

Contrast

#40647d as textRatioAAAA largeAAAFix
Aaon white
6.29:1passpassfail
  • AAA: use #3b5b72 as the text (7.18:1)
Aaon black
3.34:1failpassfail
  • AA: use #4e7997 as the text (4.51:1)
  • AAA: use #729ab6 as the text (7.01:1)
  • AA: or shift the background to #dbdbdb (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 #40647d 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 #40647d
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 #40647d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40647d-9cafc4-df4e58-1f212d-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