Color

#557f39

#557f39
hex#557f39
rgbrgb(85, 127, 57)
hslhsl(96, 38%, 36%)
oklchoklch(0.549 0.11 134.4)
Closest name: Beanpole (#4e8747)Relative luminance 0.1741

Colors that go with #557f39

Charcoal, Dark Orchid 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 →

#63397f

#787f39 · #397f40

#39557f · #7f3955

Split-complementary

Open in tool →

#40397f · #7f3978

#39787f · #63397f · #7f4039

Contrast

#557f39 as textRatioAAAA largeAAAFix
Aaon white
4.69:1passpassfail
  • AAA: use #405f2b as the text (7.27:1)
Aaon black
4.48:1failpassfail
  • AA: use #57823a as the text (4.66:1)
  • AAA: use #6fa54a as the text (7.16:1)
  • AA: or shift the background to #fcfcfc (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #557f39 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #557f39
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 #557f39 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/557f39-aabea2-5f4edf-1f2d20-f0f1e9?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