Color

#27fc59

#27fc59
hex#27fc59
rgbrgb(39, 252, 89)
hslhsl(134, 97%, 57%)
oklchoklch(0.865 0.257 145.8)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7077

Colors that go with #27fc59

Violet, Hot Pink and Plum 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 →

#fc27ca

#60fc27 · #27fcc3

#5927fc · #fc5927

Split-complementary

Open in tool →

#c327fc · #fc2760

#2760fc · #fc27ca · #fcc327

Contrast

#27fc59 as textRatioAAAA largeAAAFix
Aaon white
1.39:1failfailfail
  • AA: use #028821 as the text (4.62:1)
  • AAA: use #026419 as the text (7.4:1)
  • AA: or shift the background to #5e5e5e (4.68:1)
  • AAA: or shift the background to #424242 (7.25:1)
Aaon black
15.15:1passpasspassPasses 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 #27fc59 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 #27fc59
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 #27fc59 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/27fc59-a2beac-b559d4-1f2d29-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