Color

#404a64

#404a64
hex#404a64
rgbrgb(64, 74, 100)
hslhsl(223, 22%, 32%)
oklchoklch(0.411 0.046 268.1)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.0691

Tints & shades

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

Harmonies

Complementary

Open in tool →

#645940

#405c64 · #474064

#64404a · #4a6440

Split-complementary

Open in tool →

#644740 · #5c6440

#64405c · #645940 · #406447

Contrast

#404a64 as textRatioAAAA largeAAAFix
Aaon white
8.82:1passpasspassPasses AAA — no fix needed.
Aaon black
2.38:1failfailfail
  • AA: use #67769e as the text (4.66:1)
  • AAA: use #8995b3 as the text (7.01:1)
  • AA: or shift the background to #bababa (4.54:1)
  • AAA: or shift the background to #e6e6e6 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #404a64 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 #404a64
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #404a64 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/404a64-9ca3c4-df704e-211f2d-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