Color

#39c412

#39c412
hex#39c412
rgbrgb(57, 196, 18)
hslhsl(107, 83%, 42%)
oklchoklch(0.718 0.229 140.7)
Closest name: Crude Banana (#21c40e)Relative luminance 0.4039

Colors that go with #39c412

Charcoal, Royal Blue and Taupe 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 →

#9d12c4

#92c412 · #12c445

#1239c4 · #c41239

Split-complementary

Open in tool →

#4512c4 · #c41292

#1292c4 · #9d12c4 · #c44512

Contrast

#39c412 as textRatioAAAA largeAAAFix
Aaon white
2.31:1failfailfail
  • AA: use #27870d as the text (4.61:1)
  • AAA: use #1e670a as the text (7:1)
  • AA: or shift the background to #3d3d3d (4.7:1)
  • AAA: or shift the background to #1f1f1f (7.13:1)
Aaon black
9.08:1passpasspassPasses 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 #39c412 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 #39c412
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 #39c412 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39c412-a5bea2-7a4edf-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