Color

#187faf

#187faf
hex#187faf
rgbrgb(24, 127, 175)
hslhsl(199, 76%, 39%)
oklchoklch(0.565 0.114 235.6)
Closest name: Bleu Ciel (#007ba1)Relative luminance 0.1847

Colors that go with #187faf

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 →

#af4818

#18af93 · #1834af

#af187f · #7faf18

Split-complementary

Open in tool →

#af1834 · #af9318

#9318af · #af4818 · #34af18

Contrast

#187faf as textRatioAAAA largeAAAFix
Aaon white
4.47:1failpassfail
  • AA: use #177cab as the text (4.66:1)
  • AAA: use #125f82 as the text (7.04:1)
  • AA: or shift the background to #050505 (4.56:1)
Aaon black
4.69:1passpassfail
  • AAA: use #1ea0dc as the text (7.12:1)

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

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/187faf-9cb3c4-df4e66-1f232d-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