Color

#558b67

#558b67
hex#558b67
rgbrgb(85, 139, 103)
hslhsl(140, 24%, 44%)
oklchoklch(0.589 0.08 154.1)
Closest name: Illuminati Green (#419168)Relative luminance 0.2138

Colors that go with #558b67

Charcoal, Champagne 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.

Real palettes that use #558b67

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#8b5579

#5e8b55 · #558b82

#67558b · #8b6755

Split-complementary

Open in tool →

#82558b · #8b555e

#555e8b · #8b5579 · #8b8255

Contrast

#558b67 as textRatioAAAA largeAAAFix
Aaon white
3.98:1failpassfail
  • AA: use #4e7e5e as the text (4.7:1)
  • AAA: use #3a5f46 as the text (7.23:1)
  • AA: or shift the background to #171717 (4.5:1)
Aaon black
5.28:1passpassfail
  • AAA: use #67a27b as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #558b67 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 #558b67
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 #558b67 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/558b67-a2beaf-c259d4-1f2d2a-ebf1e9?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