Color

#12ca49

#12ca49
hex#12ca49
rgbrgb(18, 202, 73)
hslhsl(138, 84%, 43%)
oklchoklch(0.732 0.217 146.5)
Closest name: Alienated (#00cc55)Relative luminance 0.4285

Colors that go with #12ca49

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 →

#ca1292

#36ca12 · #12caa5

#4912ca · #ca4912

Split-complementary

Open in tool →

#a512ca · #ca1236

#1236ca · #ca1292 · #caa512

Contrast

#12ca49 as textRatioAAAA largeAAAFix
Aaon white
2.19:1failfailfail
  • AA: use #0c8831 as the text (4.58:1)
  • AAA: use #096725 as the text (7.05:1)
  • AA: or shift the background to #424242 (4.58:1)
  • AAA: or shift the background to #242424 (7.07:1)
Aaon black
9.57:1passpasspassPasses 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 #12ca49 as the background.

Brands using this color

mcpConnect your agent — build around #12ca49
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 #12ca49 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12ca49-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