Color

#407b7d

#407b7d
hex#407b7d
rgbrgb(64, 123, 125)
hslhsl(182, 32%, 37%)
oklchoklch(0.544 0.062 198.4)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1674

Colors that go with #407b7d

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 →

#7d4240

#407d60 · #405c7d

#7d407b · #7b7d40

Split-complementary

Open in tool →

#7d405c · #7d6040

#60407d · #7d4240 · #5c7d40

Contrast

#407b7d as textRatioAAAA largeAAAFix
Aaon white
4.83:1passpassfail
  • AAA: use #326062 as the text (7.03:1)
Aaon black
4.35:1failpassfail
  • AA: use #427e80 as the text (4.53:1)
  • AAA: use #55a2a5 as the text (7.1:1)
  • AA: or shift the background to #f7f7f7 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #407b7d 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 #407b7d
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 #407b7d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/407b7d-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