Color

#407d5c

#407d5c
hex#407d5c
rgbrgb(64, 125, 92)
hslhsl(148, 32%, 37%)
oklchoklch(0.539 0.083 158.3)
Closest name: Amazon (#387b54)Relative luminance 0.1653

Colors that go with #407d5c

Charcoal, Medium Violet Red and Blue 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 →

#7d4060

#427d40 · #407d7b

#5c407d · #7d5c40

Split-complementary

Open in tool →

#7b407d · #7d4042

#40427d · #7d4060 · #7d7b40

Contrast

#407d5c as textRatioAAAA largeAAAFix
Aaon white
4.88:1passpassfail
  • AAA: use #326248 as the text (7.06:1)
Aaon black
4.31:1failpassfail
  • AA: use #448361 as the text (4.66:1)
  • AAA: use #55a57a as the text (7.05:1)
  • AA: or shift the background to #f7f7f7 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #407d5c 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 #407d5c
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 #407d5c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/407d5c-a2beb2-d259d4-1f2d2c-eaf1e9?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