Color

#3fa256

#3fa256
hex#3fa256
rgbrgb(63, 162, 86)
hslhsl(134, 44%, 44%)
oklchoklch(0.635 0.145 148.4)
Closest name: Golf Course (#5a9e4b)Relative luminance 0.2757

Colors that go with #3fa256

Charcoal, Blue and Crimson 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 →

#a23f8b

#59a23f · #3fa287

#563fa2 · #a2563f

Split-complementary

Open in tool →

#873fa2 · #a23f59

#3f59a2 · #a23f8b · #a2873f

Contrast

#3fa256 as textRatioAAAA largeAAAFix
Aaon white
3.22:1failpassfail
  • AA: use #338446 as the text (4.64:1)
  • AAA: use #276335 as the text (7.19:1)
  • AA: or shift the background to #292929 (4.51:1)
Aaon black
6.51:1passpassfail
  • AAA: use #42a95a as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3fa256 as the background.

Brands using this color

mcpConnect your agent — build around #3fa256
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 #3fa256 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fa256-a2beac-b559d4-1f2d29-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