Color

#12fd87

#12fd87
hex#12fd87
rgbrgb(18, 253, 135)
hslhsl(150, 98%, 53%)
oklchoklch(0.872 0.225 152.4)
Closest name: springgreen (#00ff7f)Relative luminance 0.7213

Colors that go with #12fd87

Violet, Deep Sky Blue and Light Coral 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 →

#fd1287

#12fd12 · #12fdfd

#8712fd · #fd8712

Split-complementary

Open in tool →

#fd12fd · #fd1212

#1212fd · #fd1287 · #fdfd12

Contrast

#12fd87 as textRatioAAAA largeAAAFix
Aaon white
1.36:1failfailfail
  • AA: use #018845 as the text (4.56:1)
  • AAA: use #016533 as the text (7.22:1)
  • AA: or shift the background to #616161 (4.55:1)
  • AAA: or shift the background to #454545 (7.04:1)
Aaon black
15.43:1passpasspassPasses 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 #12fd87 as the background.

Brands using this color

mcpConnect your agent — build around #12fd87
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 #12fd87 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12fd87-a2beb3-d459d2-1f2d2c-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