Color

#12bf83

#12bf83
hex#12bf83
rgbrgb(18, 191, 131)
hslhsl(159, 83%, 41%)
oklchoklch(0.712 0.154 161.5)
Closest name: Fennel Fiesta (#00bb77)Relative luminance 0.3903

Colors that go with #12bf83

Charcoal, Hot Pink 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 →

#bf124f

#12bf2c · #12a5bf

#8312bf · #bf8312

Split-complementary

Open in tool →

#bf12a5 · #bf2c12

#2c12bf · #bf124f · #a5bf12

Contrast

#12bf83 as textRatioAAAA largeAAAFix
Aaon white
2.38:1failfailfail
  • AA: use #0d875c as the text (4.53:1)
  • AAA: use #096243 as the text (7.4:1)
  • AA: or shift the background to #3d3d3d (4.55:1)
  • AAA: or shift the background to #1c1c1c (7.15:1)
Aaon black
8.81:1passpasspassPasses 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 #12bf83 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #12bf83
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 #12bf83 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12bf83-a2beb8-d459c0-1f2c2d-e9f1eb?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