Color

#404863

#404863
hex#404863
rgbrgb(64, 72, 99)
hslhsl(226, 21%, 32%)
oklchoklch(0.406 0.047 271.5)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.0663

Colors that go with #404863

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 →

#635b40

#405a63 · #4a4063

#634048 · #486340

Split-complementary

Open in tool →

#634a40 · #5a6340

#63405a · #635b40 · #40634a

Contrast

#404863 as textRatioAAAA largeAAAFix
Aaon white
9.03:1passpasspassPasses AAA — no fix needed.
Aaon black
2.33:1failfailfail
  • AA: use #68749c as the text (4.57:1)
  • AAA: use #8d96b4 as the text (7.15:1)
  • AA: or shift the background to #b8b8b8 (4.55:1)
  • AAA: or shift the background to #e3e3e3 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #404863 as the background.

Brands using this color

mcpConnect your agent — build around #404863
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 #404863 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/404863-9ca1c4-df774e-221f2d-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