Color

#3b8a1e

#3b8a1e
hex#3b8a1e
rgbrgb(59, 138, 30)
hslhsl(104, 64%, 33%)
oklchoklch(0.562 0.16 139)
Closest name: Forest Green (#228b22)Relative luminance 0.192

Colors that go with #3b8a1e

Charcoal, Royal 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 →

#6d1e8a

#718a1e · #1e8a37

#1e3b8a · #8a1e3b

Split-complementary

Open in tool →

#371e8a · #8a1e71

#1e718a · #6d1e8a · #8a371e

Contrast

#3b8a1e as textRatioAAAA largeAAAFix
Aaon white
4.34:1failpassfail
  • AA: use #39861d as the text (4.56:1)
  • AAA: use #2b6416 as the text (7.15:1)
  • AA: or shift the background to #0a0a0a (4.56:1)
Aaon black
4.84:1passpassfail
  • AAA: use #49ab26 as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3b8a1e as the background.

Brands using this color

mcpConnect your agent — build around #3b8a1e
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 #3b8a1e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b8a1e-a6bea2-724edf-1f2d22-eff1e9?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