Color

#166bac

#166bac
hex#166bac
rgbrgb(22, 107, 172)
hslhsl(206, 77%, 38%)
oklchoklch(0.514 0.128 247.7)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1366

Colors that go with #166bac

Charcoal, Crimson and Sienna 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 →

#ac5716

#16aca2 · #1620ac

#ac166b · #6bac16

Split-complementary

Open in tool →

#ac1620 · #aca216

#a216ac · #ac5716 · #20ac16

Contrast

#166bac as textRatioAAAA largeAAAFix
Aaon white
5.63:1passpassfail
  • AAA: use #135a90 as the text (7.26:1)
Aaon black
3.73:1failpassfail
  • AA: use #1979c2 as the text (4.56:1)
  • AAA: use #3d9de6 as the text (7.16:1)
  • AA: or shift the background to #e6e6e6 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #166bac as the background.

Brands using this color

Fonts for this mood

#166bac reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #166bac
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 #166bac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/166bac-9caec4-df4e56-1f212d-e9f1f1?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