Color

#558d11

#558d11
hex#558d11
rgbrgb(85, 141, 17)
hslhsl(87, 78%, 31%)
oklchoklch(0.582 0.157 132.4)
Closest name: Asparagus Sultan (#6a8e22)Relative luminance 0.2102

Colors that go with #558d11

Crimson, Royal Blue and Charcoal 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 →

#49118d

#8d8711 · #188d11

#11558d · #8d1155

Split-complementary

Open in tool →

#11188d · #87118d

#118d87 · #49118d · #8d1118

Contrast

#558d11 as textRatioAAAA largeAAAFix
Aaon white
4.04:1failpassfail
  • AA: use #508410 as the text (4.52:1)
  • AAA: use #3a5f0c as the text (7.44:1)
  • AA: or shift the background to #141414 (4.57:1)
Aaon black
5.2:1passpassfail
  • AAA: use #66a815 as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #558d11 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 #558d11
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 #558d11 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/558d11-aebea2-4e53df-212d1f-f1f1e9?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