Color

#3dfa79

#3dfa79
hex#3dfa79
rgbrgb(61, 250, 121)
hslhsl(139, 95%, 61%)
oklchoklch(0.867 0.227 148.9)
Closest name: springgreen (#00ff7f)Relative luminance 0.7074

Colors that go with #3dfa79

Violet, Charcoal and Deep Sky Blue 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 →

#fa3dbe

#60fa3d · #3dfad7

#793dfa · #fa793d

Split-complementary

Open in tool →

#d73dfa · #fa3d60

#3d60fa · #fa3dbe · #fad73d

Contrast

#3dfa79 as textRatioAAAA largeAAAFix
Aaon white
1.39:1failfailfail
  • AA: use #03862d as the text (4.72:1)
  • AAA: use #036321 as the text (7.47:1)
  • AA: or shift the background to #5e5e5e (4.68:1)
  • AAA: or shift the background to #424242 (7.25:1)
Aaon black
15.15:1passpasspassPasses 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 #3dfa79 as the background.

Brands using this color

mcpConnect your agent — build around #3dfa79
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 #3dfa79 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3dfa79-a2beae-c059d4-1f2d2a-ebf1e9?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