Color

#404763

#404763
hex#404763
rgbrgb(64, 71, 99)
hslhsl(228, 21%, 32%)
oklchoklch(0.404 0.048 273.3)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.065

Colors that go with #404763

Steel Blue, Blue and Blush Pink 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 →

#635c40

#405863 · #4b4063

#634047 · #476340

Split-complementary

Open in tool →

#634b40 · #586340

#634058 · #635c40 · #40634b

Contrast

#404763 as textRatioAAAA largeAAAFix
Aaon white
9.13:1passpasspassPasses AAA — no fix needed.
Aaon black
2.3:1failfailfail
  • AA: use #6b759e as the text (4.66:1)
  • AAA: use #8d95b4 as the text (7.09:1)
  • AA: or shift the background to #b8b8b8 (4.6:1)
  • AAA: or shift the background to #e3e3e3 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #404763 as the background.

Brands using this color

mcpConnect your agent — build around #404763
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 #404763 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/404763-9c9fc4-df7c4e-231f2d-e9eff1?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