Color

#18fb64

#18fb64
hex#18fb64
rgbrgb(24, 251, 100)
hslhsl(140, 97%, 54%)
oklchoklch(0.862 0.25 147.3)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7011

Colors that go with #18fb64

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 →

#fb18b0

#3efb18 · #18fbd6

#6418fb · #fb6418

Split-complementary

Open in tool →

#d618fb · #fb183e

#183efb · #fb18b0 · #fbd618

Contrast

#18fb64 as textRatioAAAA largeAAAFix
Aaon white
1.4:1failfailfail
  • AA: use #02882f as the text (4.6:1)
  • AAA: use #026423 as the text (7.37:1)
  • AA: or shift the background to #5e5e5e (4.64:1)
  • AAA: or shift the background to #424242 (7.19:1)
Aaon black
15.02:1passpasspassPasses 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 #18fb64 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 #18fb64
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 #18fb64 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18fb64-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