Color

#12ce7a

#12ce7a
hex#12ce7a
rgbrgb(18, 206, 122)
hslhsl(153, 84%, 44%)
oklchoklch(0.749 0.181 155.5)
Closest name: Emerald Green (#50c878)Relative luminance 0.4568

Colors that go with #12ce7a

Charcoal, Blue and Mustard Yellow 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 →

#ce1267

#12ce1b · #12c5ce

#7a12ce · #ce7a12

Split-complementary

Open in tool →

#ce12c5 · #ce1b12

#1b12ce · #ce1267 · #c5ce12

Contrast

#12ce7a as textRatioAAAA largeAAAFix
Aaon white
2.07:1failfailfail
  • AA: use #0c8850 as the text (4.51:1)
  • AAA: use #09633a as the text (7.35:1)
  • AA: or shift the background to #454545 (4.63:1)
  • AAA: or shift the background to #292929 (7.02:1)
Aaon black
10.14:1passpasspassPasses 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 #12ce7a as the background.

Brands using this color

mcpConnect your agent — build around #12ce7a
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 #12ce7a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12ce7a-a2beb5-d459cc-1f2d2d-e9f1ea?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