Color

#3ef944

#3ef944
hex#3ef944
rgbrgb(62, 249, 68)
hslhsl(122, 94%, 61%)
oklchoklch(0.859 0.262 143.2)
Closest name: Cathode Green (#00ff55)Relative luminance 0.6919

Colors that go with #3ef944

Violet, Deep Sky Blue and Hot Pink 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 →

#f93ef3

#95f93e · #3ef9a2

#443ef9 · #f9443e

Split-complementary

Open in tool →

#a23ef9 · #f93e95

#3e95f9 · #f93ef3 · #f9a23e

Contrast

#3ef944 as textRatioAAAA largeAAAFix
Aaon white
1.42:1failfailfail
  • AA: use #048608 as the text (4.75:1)
  • AAA: use #036807 as the text (7.03:1)
  • AA: or shift the background to #5e5e5e (4.58:1)
  • AAA: or shift the background to #424242 (7.1:1)
Aaon black
14.84:1passpasspassPasses 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 #3ef944 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 #3ef944
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 #3ef944 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ef944-a2bea6-9e4edf-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