Color

#407d53

#407d53
hex#407d53
rgbrgb(64, 125, 83)
hslhsl(139, 32%, 37%)
oklchoklch(0.537 0.092 152.3)
Closest name: Amazon (#387b54)Relative luminance 0.1638

Colors that go with #407d53

Charcoal, Royal Blue and Medium Violet Red 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 →

#7d4069

#4b7d40 · #407d71

#53407d · #7d5340

Split-complementary

Open in tool →

#71407d · #7d404b

#404b7d · #7d4069 · #7d7140

Contrast

#407d53 as textRatioAAAA largeAAAFix
Aaon white
4.91:1passpassfail
  • AAA: use #326241 as the text (7.1:1)
Aaon black
4.28:1failpassfail
  • AA: use #448358 as the text (4.63:1)
  • AAA: use #57a871 as the text (7.24:1)
  • AA: or shift the background to #f5f5f5 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #407d53 as the background.

Brands using this color

mcpConnect your agent — build around #407d53
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 #407d53 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/407d53-a2beae-c059d4-1f2d2a-ebf1e9?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