Color

#3ff85e

#3ff85e
hex#3ff85e
rgbrgb(63, 248, 94)
hslhsl(130, 93%, 61%)
oklchoklch(0.859 0.245 145.4)
Closest name: Cathode Green (#00ff55)Relative luminance 0.69

Colors that go with #3ff85e

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.

Real palettes that use #3ff85e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f83fd9

#7df83f · #3ff8ba

#5e3ff8 · #f85e3f

Split-complementary

Open in tool →

#ba3ff8 · #f83f7d

#3f7df8 · #f83fd9 · #f8ba3f

Contrast

#3ff85e as textRatioAAAA largeAAAFix
Aaon white
1.42:1failfailfail
  • AA: use #058a1b as the text (4.51:1)
  • AAA: use #046714 as the text (7.11:1)
  • AA: or shift the background to #5e5e5e (4.57:1)
  • AAA: or shift the background to #424242 (7.08:1)
Aaon black
14.8:1passpasspassPasses 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 #3ff85e 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 #3ff85e
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 #3ff85e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ff85e-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