Color

#3dfa56

#3dfa56
hex#3dfa56
rgbrgb(61, 250, 86)
hslhsl(128, 95%, 61%)
oklchoklch(0.863 0.253 144.7)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7004

Colors that go with #3dfa56

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fa3de1

#82fa3d · #3dfab5

#563dfa · #fa563d

Split-complementary

Open in tool →

#b53dfa · #fa3d82

#3d82fa · #fa3de1 · #fab53d

Contrast

#3dfa56 as textRatioAAAA largeAAAFix
Aaon white
1.4:1failfailfail
  • AA: use #038615 as the text (4.75:1)
  • AAA: use #036810 as the text (7.02:1)
  • AA: or shift the background to #5e5e5e (4.63:1)
  • AAA: or shift the background to #424242 (7.18:1)
Aaon black
15.01:1passpasspassPasses 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 #3dfa56 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 #3dfa56
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 #3dfa56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3dfa56-a2bea9-ac4edf-1f2d27-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