Color

#198f9f

#198f9f
hex#198f9f
rgbrgb(25, 143, 159)
hslhsl(187, 73%, 36%)
oklchoklch(0.597 0.098 209.3)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2235

Colors that go with #198f9f

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 #198f9f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9f2819

#199f6b · #194c9f

#9f198f · #8f9f19

Split-complementary

Open in tool →

#9f194c · #9f6b19

#6b199f · #9f2819 · #4c9f19

Contrast

#198f9f as textRatioAAAA largeAAAFix
Aaon white
3.84:1failpassfail
  • AA: use #167f8d as the text (4.71:1)
  • AAA: use #115f6a as the text (7.32:1)
  • AA: or shift the background to #1a1a1a (4.53:1)
Aaon black
5.47:1passpassfail
  • AAA: use #1da7b9 as the text (7.28:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #198f9f 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

#198f9f reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #198f9f
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 #198f9f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/198f9f-a2b8be-df4e83-1f262d-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