Color

#1cfd27

#1cfd27
hex#1cfd27
rgbrgb(28, 253, 39)
hslhsl(123, 98%, 55%)
oklchoklch(0.863 0.284 142.9)
Closest name: Cyber Neon Green (#00ff26)Relative luminance 0.7064

Colors that go with #1cfd27

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 →

#fd1cf1

#81fd1c · #1cfd97

#271cfd · #fd271c

Split-complementary

Open in tool →

#971cfd · #fd1c81

#1c81fd · #fd1cf1 · #fd971c

Contrast

#1cfd27 as textRatioAAAA largeAAAFix
Aaon white
1.39:1failfailfail
  • AA: use #018808 as the text (4.64:1)
  • AAA: use #016506 as the text (7.33:1)
  • AA: or shift the background to #5e5e5e (4.67:1)
  • AAA: or shift the background to #424242 (7.24:1)
Aaon black
15.13:1passpasspassPasses 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 #1cfd27 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #1cfd27
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 #1cfd27 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1cfd27-a2bea6-a04edf-1f2d26-edf1e9?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