Color

#188caf

#188caf
hex#188caf
rgbrgb(24, 140, 175)
hslhsl(194, 76%, 39%)
oklchoklch(0.597 0.107 224.7)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2205

Colors that go with #188caf

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 →

#af3b18

#18af87 · #1840af

#af188c · #8caf18

Split-complementary

Open in tool →

#af1840 · #af8718

#8718af · #af3b18 · #40af18

Contrast

#188caf as textRatioAAAA largeAAAFix
Aaon white
3.88:1failpassfail
  • AA: use #157d9d as the text (4.72:1)
  • AAA: use #105d75 as the text (7.38:1)
  • AA: or shift the background to #171717 (4.62:1)
Aaon black
5.41:1passpassfail

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

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

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

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

tool url/palettes/new/188caf-9cb6c4-df4e72-1f242d-e9f1ef?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