Color

#12f3ba

#12f3ba
hex#12f3ba
rgbrgb(18, 243, 186)
hslhsl(165, 90%, 51%)
oklchoklch(0.857 0.172 167.9)
Closest name: Aquamarine (#2ee8bb)Relative luminance 0.6777

Colors that go with #12f3ba

Taupe, Hot Pink and Charcoal 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 →

#f3124a

#12f34a · #12baf3

#ba12f3 · #f3ba12

Split-complementary

Open in tool →

#f312ba · #f34a12

#4a12f3 · #f3124a · #baf312

Contrast

#12f3ba as textRatioAAAA largeAAAFix
Aaon white
1.44:1failfailfail
  • AA: use #078364 as the text (4.73:1)
  • AAA: use #05614a as the text (7.46:1)
  • AA: or shift the background to #5c5c5c (4.63:1)
  • AAA: or shift the background to #404040 (7.19:1)
Aaon black
14.55:1passpasspassPasses 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 #12f3ba as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #12f3ba
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 #12f3ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12f3ba-a2beba-d459b3-1f2b2d-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