Color

#129daf

#129daf
hex#129daf
rgbrgb(18, 157, 175)
hslhsl(187, 81%, 38%)
oklchoklch(0.638 0.107 209.4)
Closest name: Baltic (#279d9f)Relative luminance 0.2734

Colors that go with #129daf

Charcoal, Orange Red and Amber 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.

Real palettes that use #129daf

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#af2512

#12af73 · #124faf

#af129d · #9daf12

Split-complementary

Open in tool →

#af124f · #af7312

#7312af · #af2512 · #4faf12

Contrast

#129daf as textRatioAAAA largeAAAFix
Aaon white
3.25:1failpassfail
  • AA: use #0f808f as the text (4.66:1)
  • AAA: use #0b5f6a as the text (7.34:1)
  • AA: or shift the background to #262626 (4.66:1)
Aaon black
6.47:1passpassfail
  • AAA: use #13a5b9 as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #129daf 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

#129daf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #129daf
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 #129daf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/129daf-a2b8be-df4e83-1f262d-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