Color

#13a43f

#13a43f
hex#13a43f
rgbrgb(19, 164, 63)
hslhsl(138, 79%, 36%)
oklchoklch(0.628 0.181 147.1)
Closest name: Fennel Fiasco (#00aa44)Relative luminance 0.2705

Colors that go with #13a43f

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 →

#a41379

#30a413 · #13a487

#3f13a4 · #a43f13

Split-complementary

Open in tool →

#8713a4 · #a41330

#1330a4 · #a41379 · #a48713

Contrast

#13a43f as textRatioAAAA largeAAAFix
Aaon white
3.28:1failpassfail
  • AA: use #108934 as the text (4.52:1)
  • AAA: use #0c6426 as the text (7.33:1)
  • AA: or shift the background to #262626 (4.62:1)
Aaon black
6.41:1passpassfail
  • AAA: use #14ad42 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 #13a43f as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #13a43f
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 #13a43f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/13a43f-a2beae-be59d4-1f2d29-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