Color

#437f4e

#437f4e
hex#437f4e
rgbrgb(67, 127, 78)
hslhsl(131, 31%, 38%)
oklchoklch(0.542 0.099 148.3)
Closest name: Amazon (#387b54)Relative luminance 0.1692

Colors that go with #437f4e

Charcoal, Royal Blue and Dark Orchid 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 →

#7f4374

#567f43 · #437f6c

#4e437f · #7f4e43

Split-complementary

Open in tool →

#6c437f · #7f4356

#43567f · #7f4374 · #7f6c43

Contrast

#437f4e as textRatioAAAA largeAAAFix
Aaon white
4.79:1passpassfail
  • AAA: use #33613b as the text (7.21:1)
Aaon black
4.38:1failpassfail
  • AA: use #458250 as the text (4.56:1)
  • AAA: use #58a766 as the text (7.13:1)
  • AA: or shift the background to #fafafa (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #437f4e as the background.

Brands using this color

mcpConnect your agent — build around #437f4e
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 #437f4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/437f4e-a2beaa-b34edf-1f2d28-ecf1e9?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