Color

#407577

#407577
hex#407577
rgbrgb(64, 117, 119)
hslhsl(182, 30%, 36%)
oklchoklch(0.527 0.057 198.7)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1514

Colors that go with #407577

Charcoal, Rust and Amber 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 →

#774240

#40775e · #405a77

#774076 · #767740

Split-complementary

Open in tool →

#77405a · #775e40

#5e4077 · #774240 · #5a7740

Contrast

#407577 as textRatioAAAA largeAAAFix
Aaon white
5.21:1passpassfail
  • AAA: use #345f60 as the text (7.11:1)
Aaon black
4.03:1failpassfail
  • AA: use #467f81 as the text (4.61:1)
  • AAA: use #59a3a6 as the text (7.21:1)
  • AA: or shift the background to #f0f0f0 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #407577 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 #407577
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 #407577 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/407577-a2babe-d45990-1f272d-e9f1ee?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