Color

#55aa81

#55aa81
hex#55aa81
rgbrgb(85, 170, 129)
hslhsl(151, 33%, 50%)
oklchoklch(0.673 0.104 160.8)
Closest name: Herbal (#29ab87)Relative luminance 0.3227

Colors that go with #55aa81

Charcoal, Cornflower Blue 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 →

#aa557e

#55aa57 · #55a8aa

#8155aa · #aa8155

Split-complementary

Open in tool →

#aa55a8 · #aa5755

#5755aa · #aa557e · #a8aa55

Contrast

#55aa81 as textRatioAAAA largeAAAFix
Aaon white
2.82:1failfailfail
  • AA: use #418162 as the text (4.62:1)
  • AAA: use #32624b as the text (7.04:1)
  • AA: or shift the background to #303030 (4.68:1)
  • AAA: or shift the background to #0a0a0a (7.03:1)
Aaon black
7.45:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #55aa81 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 #55aa81
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 #55aa81 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/55aa81-a2beb4-d459d0-1f2d2c-e9f1ea?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