Color

#3aa156

#3aa156
hex#3aa156
rgbrgb(58, 161, 86)
hslhsl(136, 47%, 43%)
oklchoklch(0.631 0.146 149.2)
Closest name: Golf Course (#5a9e4b)Relative luminance 0.2706

Colors that go with #3aa156

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 →

#a13a86

#52a13a · #3aa189

#563aa1 · #a1563a

Split-complementary

Open in tool →

#893aa1 · #a13a52

#3a52a1 · #a13a86 · #a1893a

Contrast

#3aa156 as textRatioAAAA largeAAAFix
Aaon white
3.27:1failpassfail
  • AA: use #2f8346 as the text (4.71:1)
  • AAA: use #246536 as the text (7.02:1)
  • AA: or shift the background to #262626 (4.62:1)
Aaon black
6.41:1passpassfail
  • AAA: use #3da95a as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3aa156 as the background.

Brands using this color

mcpConnect your agent — build around #3aa156
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 #3aa156 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3aa156-a2bead-b959d4-1f2d29-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