Color

#12ca52

#12ca52
hex#12ca52
rgbrgb(18, 202, 82)
hslhsl(141, 84%, 43%)
oklchoklch(0.733 0.21 147.7)
Closest name: Alienated (#00cc55)Relative luminance 0.4298

Colors that go with #12ca52

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 →

#ca1289

#2dca12 · #12caae

#5212ca · #ca5212

Split-complementary

Open in tool →

#ae12ca · #ca122d

#122dca · #ca1289 · #caae12

Contrast

#12ca52 as textRatioAAAA largeAAAFix
Aaon white
2.19:1failfailfail
  • AA: use #0c8837 as the text (4.57:1)
  • AAA: use #09672a as the text (7.03:1)
  • AA: or shift the background to #424242 (4.59:1)
  • AAA: or shift the background to #242424 (7.09:1)
Aaon black
9.6:1passpasspassPasses 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 #12ca52 as the background.

Brands using this color

mcpConnect your agent — build around #12ca52
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 #12ca52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12ca52-a2beaf-c459d4-1f2d2a-eaf1e9?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