Color

#558151

#558151
hex#558151
rgbrgb(85, 129, 81)
hslhsl(115, 23%, 41%)
oklchoklch(0.558 0.087 142.4)
Closest name: Beyond the Pines (#688049)Relative luminance 0.1823

Colors that go with #558151

Charcoal, Blue 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 →

#7d5181

#6d8151 · #518165

#515581 · #815155

Split-complementary

Open in tool →

#655181 · #81516d

#516d81 · #7d5181 · #816551

Contrast

#558151 as textRatioAAAA largeAAAFix
Aaon white
4.52:1passpassfail
  • AAA: use #40613d as the text (7.01:1)
Aaon black
4.65:1passpassfail
  • AAA: use #70a36c as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #558151 as the background.

Brands using this color

mcpConnect your agent — build around #558151
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 #558151 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/558151-a2bea3-8d4edf-1f2d24-eef1e9?lock=0&style=vibrant

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Machine-readable: color.md