Color

#187daf

#187daf
hex#187daf
rgbrgb(24, 125, 175)
hslhsl(200, 76%, 39%)
oklchoklch(0.56 0.115 237.1)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1796

Colors that go with #187daf

Charcoal, Crimson and Royal Blue 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 →

#af4a18

#18af96 · #1831af

#af187d · #7daf18

Split-complementary

Open in tool →

#af1831 · #af9618

#9618af · #af4a18 · #31af18

Contrast

#187daf as textRatioAAAA largeAAAFix
Aaon white
4.57:1passpassfail
  • AAA: use #125d82 as the text (7.21:1)
Aaon black
4.59:1passpassfail
  • AAA: use #1fa0e0 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #187daf as the background.

Brands using this color

Fonts for this mood

#187daf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #187daf
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 #187daf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/187daf-9cb2c4-df4e64-1f232d-e9f1f0?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