Color

#128c80

#128c80
hex#128c80
rgbrgb(18, 140, 128)
hslhsl(174, 77%, 31%)
oklchoklch(0.577 0.099 184.1)
Closest name: Go Go Green (#008a7d)Relative luminance 0.2044

Colors that go with #128c80

Charcoal, Copper and Medium Violet Red 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 #128c80

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8c121e

#128c43 · #125b8c

#80128c · #8c8012

Split-complementary

Open in tool →

#8c125b · #8c4312

#43128c · #8c121e · #5b8c12

Contrast

#128c80 as textRatioAAAA largeAAAFix
Aaon white
4.13:1failpassfail
  • AA: use #118378 as the text (4.62:1)
  • AAA: use #0d635b as the text (7.11:1)
  • AA: or shift the background to #121212 (4.54:1)
Aaon black
5.09:1passpassfail
  • AAA: use #16a798 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #128c80 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 #128c80
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 #128c80 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/128c80-a2bebe-d459a1-1f292d-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