Color

#407d7d

#407d7d
hex#407d7d
rgbrgb(64, 125, 125)
hslhsl(180, 32%, 37%)
oklchoklch(0.549 0.063 195.5)
Closest name: Emerald Whispers (#2b8478)Relative luminance 0.1724

Colors that go with #407d7d

Charcoal, Amber and Champagne 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 →

#7d4040

#407d5e · #405e7d

#7d407d · #7d7d40

Split-complementary

Open in tool →

#7d405e · #7d5e40

#5e407d · #7d4040 · #5e7d40

Contrast

#407d7d as textRatioAAAA largeAAAFix
Aaon white
4.72:1passpassfail
  • AAA: use #315e5e as the text (7.26:1)
Aaon black
4.45:1failpassfail
  • AA: use #428080 as the text (4.63:1)
  • AAA: use #53a2a2 as the text (7.06:1)
  • AA: or shift the background to #fafafa (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #407d7d 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 #407d7d
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 #407d7d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/407d7d-a2bbbe-d45994-1f272d-e9f1ed?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