Color

#3f8a14

#3f8a14
hex#3f8a14
rgbrgb(63, 138, 20)
hslhsl(98, 75%, 31%)
oklchoklch(0.563 0.163 137.4)
Closest name: Forest Green (#228b22)Relative luminance 0.1928

Colors that go with #3f8a14

Royal Blue, Charcoal 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 →

#5f148a

#7b8a14 · #148a24

#143f8a · #8a143f

Split-complementary

Open in tool →

#24148a · #8a147b

#147b8a · #5f148a · #8a2414

Contrast

#3f8a14 as textRatioAAAA largeAAAFix
Aaon white
4.32:1failpassfail
  • AA: use #3d8613 as the text (4.55:1)
  • AAA: use #2d620e as the text (7.33:1)
  • AA: or shift the background to #0a0a0a (4.58:1)
Aaon black
4.86:1passpassfail
  • AAA: use #4eaa18 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f8a14 as the background.

Brands using this color

mcpConnect your agent — build around #3f8a14
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 #3f8a14 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f8a14-a9bea2-644edf-1f2d20-f0f1e9?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