Color

#55af78

#55af78
hex#55af78
rgbrgb(85, 175, 120)
hslhsl(143, 36%, 51%)
oklchoklch(0.684 0.12 154.7)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.3395

Colors that go with #55af78

Charcoal, Blue and Cornflower 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 →

#af558d

#60af55 · #55afa5

#7855af · #af7855

Split-complementary

Open in tool →

#a555af · #af5560

#5560af · #af558d · #afa555

Contrast

#55af78 as textRatioAAAA largeAAAFix
Aaon white
2.7:1failfailfail
  • AA: use #3e8459 as the text (4.52:1)
  • AAA: use #2e6141 as the text (7.24:1)
  • AA: or shift the background to #333333 (4.69:1)
  • AAA: or shift the background to #0f0f0f (7.11:1)
Aaon black
7.79:1passpasspassPasses 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 #55af78 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 #55af78
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 #55af78 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/55af78-a2beb0-c859d4-1f2d2b-eaf1e9?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