Color

#178c85

#178c85
hex#178c85
rgbrgb(23, 140, 133)
hslhsl(176, 72%, 32%)
oklchoklch(0.579 0.096 188.4)
Closest name: darkcyan (#008b8b)Relative luminance 0.2063

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8c171f

#178c4a · #17598c

#85178c · #8c8517

Split-complementary

Open in tool →

#8c1759 · #8c4a17

#4a178c · #8c171f · #598c17

Contrast

#178c85 as textRatioAAAA largeAAAFix
Aaon white
4.1:1failpassfail
  • AA: use #15847c as the text (4.54:1)
  • AAA: use #10605b as the text (7.38:1)
  • AA: or shift the background to #121212 (4.57:1)
Aaon black
5.13:1passpassfail
  • AAA: use #1ba79d as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #178c85 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 #178c85
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 #178c85 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/178c85-a2bdbe-d4599d-1f282d-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