Color

#3fd956

#3fd956
hex#3fd956
rgbrgb(63, 217, 86)
hslhsl(129, 67%, 55%)
oklchoklch(0.779 0.215 145.4)
Closest name: Green Priestess (#11dd55)Relative luminance 0.5135

Colors that go with #3fd956

Royal 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 →

#d93fc2

#75d93f · #3fd9a3

#563fd9 · #d9563f

Split-complementary

Open in tool →

#a33fd9 · #d93f75

#3f75d9 · #d93fc2 · #d9a33f

Contrast

#3fd956 as textRatioAAAA largeAAAFix
Aaon white
1.86:1failfailfail
  • AA: use #1b882b as the text (4.56:1)
  • AAA: use #146620 as the text (7.12:1)
  • AA: or shift the background to #4d4d4d (4.54:1)
  • AAA: or shift the background to #303030 (7.08:1)
Aaon black
11.27:1passpasspassPasses 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 #3fd956 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 #3fd956
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 #3fd956 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fd956-a2bea9-ae4edf-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