Color

#129ea1

#129ea1
hex#129ea1
rgbrgb(18, 158, 161)
hslhsl(181, 80%, 35%)
oklchoklch(0.636 0.105 197.3)
Closest name: Baltic (#279d9f)Relative luminance 0.2716

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a11412

#12a15c · #1257a1

#a1129e · #9ea112

Split-complementary

Open in tool →

#a11257 · #a15c12

#5c12a1 · #a11412 · #57a112

Contrast

#129ea1 as textRatioAAAA largeAAAFix
Aaon white
3.27:1failpassfail
  • AA: use #0f8385 as the text (4.56:1)
  • AAA: use #0b6365 as the text (7.03:1)
  • AA: or shift the background to #262626 (4.63:1)
Aaon black
6.43:1passpassfail
  • AAA: use #13a7aa as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #129ea1 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

#129ea1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #129ea1
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #129ea1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/129ea1-a2babe-d45992-1f272d-e9f1ed?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