Color

#558a42

#558a42
hex#558a42
rgbrgb(85, 138, 66)
hslhsl(104, 35%, 40%)
oklchoklch(0.579 0.118 138)
Closest name: Fern (#548d44)Relative luminance 0.205

Colors that go with #558a42

Charcoal, Blue and Copper 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 →

#77428a

#798a42 · #428a53

#42558a · #8a4255

Split-complementary

Open in tool →

#53428a · #8a4279

#42798a · #77428a · #8a5342

Contrast

#558a42 as textRatioAAAA largeAAAFix
Aaon white
4.12:1failpassfail
  • AA: use #4f7f3d as the text (4.73:1)
  • AAA: use #3c602e as the text (7.23:1)
  • AA: or shift the background to #121212 (4.55:1)
Aaon black
5.1:1passpassfail
  • AAA: use #66a550 as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #558a42 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 #558a42
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 #558a42 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/558a42-a6bea2-724edf-1f2d22-eff1e9?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