Color

#40646d

#40646d
hex#40646d
rgbrgb(64, 100, 109)
hslhsl(192, 26%, 34%)
oklchoklch(0.48 0.044 215.2)
Closest name: After the Storm (#33616a)Relative luminance 0.1131

Colors that go with #40646d

Charcoal, Steel Blue and Sienna 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 →

#6d4940

#406d60 · #404e6d

#6d4064 · #646d40

Split-complementary

Open in tool →

#6d404e · #6d6040

#60406d · #6d4940 · #4e6d40

Contrast

#40646d as textRatioAAAA largeAAAFix
Aaon white
6.44:1passpassfail
  • AAA: use #3c5e67 as the text (7.03:1)
Aaon black
3.26:1failpassfail
  • AA: use #4f7c87 as the text (4.57:1)
  • AAA: use #6e9eaa as the text (7.13:1)
  • AA: or shift the background to #d9d9d9 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40646d 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 #40646d
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 #40646d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40646d-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