Color

#404577

#404577
hex#404577
rgbrgb(64, 69, 119)
hslhsl(235, 30%, 36%)
oklchoklch(0.41 0.083 277.7)
Closest name: Evening Magic (#363e7d)Relative luminance 0.0668

Colors that go with #404577

Steel Blue, Blue and Crimson 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 →

#777340

#406077 · #574077

#774045 · #457740

Split-complementary

Open in tool →

#775740 · #607740

#774060 · #777340 · #407757

Contrast

#404577 as textRatioAAAA largeAAAFix
Aaon white
8.99:1passpasspassPasses AAA — no fix needed.
Aaon black
2.34:1failfailfail
  • AA: use #6a70af as the text (4.55:1)
  • AAA: use #8e93c2 as the text (7.1:1)
  • AA: or shift the background to #b8b8b8 (4.53:1)
  • AAA: or shift the background to #e3e3e3 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #404577 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 #404577
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 #404577 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/404577-9e9cc4-df8d4e-241f2d-e9eef1?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