Color

#188f91

#188f91
hex#188f91
rgbrgb(24, 143, 145)
hslhsl(181, 72%, 33%)
oklchoklch(0.592 0.096 196.7)
Closest name: darkcyan (#008b8b)Relative luminance 0.2188

Colors that go with #188f91

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.

Real palettes that use #188f91

Tints & shades

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

Harmonies

Complementary

Open in tool →

#911a18

#189156 · #185291

#91188f · #8f9118

Split-complementary

Open in tool →

#911852 · #915618

#561891 · #911a18 · #529118

Contrast

#188f91 as textRatioAAAA largeAAAFix
Aaon white
3.91:1failpassfail
  • AA: use #158284 as the text (4.61:1)
  • AAA: use #106365 as the text (7.01:1)
  • AA: or shift the background to #171717 (4.59:1)
Aaon black
5.38:1passpassfail
  • AAA: use #1ca9ab as the text (7.31:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #188f91 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

#188f91 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #188f91
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 #188f91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/188f91-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