Color

#188d91

#188d91
hex#188d91
rgbrgb(24, 141, 145)
hslhsl(182, 72%, 33%)
oklchoklch(0.586 0.095 198.6)
Closest name: darkcyan (#008b8b)Relative luminance 0.2129

Colors that go with #188d91

Charcoal, Copper and Crimson 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 →

#911c18

#189158 · #185091

#91188d · #8d9118

Split-complementary

Open in tool →

#911850 · #915818

#581891 · #911c18 · #509118

Contrast

#188d91 as textRatioAAAA largeAAAFix
Aaon white
3.99:1failpassfail
  • AA: use #158084 as the text (4.72:1)
  • AAA: use #106265 as the text (7.1:1)
  • AA: or shift the background to #141414 (4.61:1)
Aaon black
5.26:1passpassfail
  • AAA: use #1ca6ab as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #188d91 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

#188d91 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #188d91
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 #188d91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/188d91-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