Color

#12b4ba

#12b4ba
hex#12b4ba
rgbrgb(18, 180, 186)
hslhsl(182, 82%, 40%)
oklchoklch(0.7 0.117 199.1)
Closest name: lightseagreen (#20b2aa)Relative luminance 0.3632

Colors that go with #12b4ba

Charcoal, Denim and Dodger Blue 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 →

#ba1812

#12ba6c · #1260ba

#ba12b4 · #b4ba12

Split-complementary

Open in tool →

#ba1260 · #ba6c12

#6c12ba · #ba1812 · #60ba12

Contrast

#12b4ba as textRatioAAAA largeAAAFix
Aaon white
2.54:1failfailfail
  • AA: use #0d8387 as the text (4.55:1)
  • AAA: use #0a6366 as the text (7.02:1)
  • AA: or shift the background to #383838 (4.61:1)
  • AAA: or shift the background to #171717 (7.05:1)
Aaon black
8.26:1passpasspassPasses 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 #12b4ba as the background.

Brands using this color

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

Fonts for this mood

#12b4ba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #12b4ba
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 #12b4ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12b4ba-a2babe-d45990-1f272d-e9f1ee?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