Color

#2eff51

#2eff51
hex#2eff51
rgbrgb(46, 255, 81)
hslhsl(130, 100%, 59%)
oklchoklch(0.873 0.264 144.8)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7269

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#ff2edc

#74ff2e · #2effb9

#512eff · #ff512e

Split-complementary

Open in tool →

#b92eff · #ff2e74

#2e74ff · #ff2edc · #ffb92e

Contrast

#2eff51 as textRatioAAAA largeAAAFix
Aaon white
1.35:1failfailfail
  • AA: use #008a17 as the text (4.52:1)
  • AAA: use #006611 as the text (7.22:1)
  • AA: or shift the background to #616161 (4.58:1)
  • AAA: or shift the background to #454545 (7.09:1)
Aaon black
15.54:1passpasspassPasses 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 #2eff51 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 #2eff51
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #2eff51 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2eff51-a2beaa-b14edf-1f2d28-ecf1e9?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