Color

#3fe98e

#3fe98e
hex#3fe98e
rgbrgb(63, 233, 142)
hslhsl(148, 79%, 58%)
oklchoklch(0.828 0.187 154.6)
Closest name: Grotesque Green (#64e986)Relative luminance 0.6129

Colors that go with #3fe98e

Deep Sky Blue, Taupe and Violet 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 →

#e93f9a

#45e93f · #3fe9e3

#8e3fe9 · #e98e3f

Split-complementary

Open in tool →

#e33fe9 · #e93f45

#3f45e9 · #e93f9a · #e9e33f

Contrast

#3fe98e as textRatioAAAA largeAAAFix
Aaon white
1.58:1failfailfail
  • AA: use #108446 as the text (4.76:1)
  • AAA: use #0c6435 as the text (7.27:1)
  • AA: or shift the background to #575757 (4.56:1)
  • AAA: or shift the background to #3b3b3b (7.07:1)
Aaon black
13.26:1passpasspassPasses 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 #3fe98e as the background.

Brands using this color

mcpConnect your agent — build around #3fe98e
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 #3fe98e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fe98e-a2beb2-d259d4-1f2d2c-eaf1e9?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