Color

#12deb5

#12deb5
hex#12deb5
rgbrgb(18, 222, 181)
hslhsl(168, 85%, 47%)
oklchoklch(0.804 0.153 172.8)
Closest name: Aquamarine (#2ee8bb)Relative luminance 0.5571

Colors that go with #12deb5

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 →

#de123b

#12de4f · #12a1de

#b512de · #deb512

Split-complementary

Open in tool →

#de12a1 · #de4f12

#4f12de · #de123b · #a1de12

Contrast

#12deb5 as textRatioAAAA largeAAAFix
Aaon white
1.73:1failfailfail
  • AA: use #0b846c as the text (4.63:1)
  • AAA: use #086351 as the text (7.21:1)
  • AA: or shift the background to #525252 (4.52:1)
  • AAA: or shift the background to #333333 (7.3:1)
Aaon black
12.14:1passpasspassPasses 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 #12deb5 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 #12deb5
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 #12deb5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12deb5-a2bebc-d459ad-1f2a2d-e9f1ec?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