Color

#1171bb

#1171bb
hex#1171bb
rgbrgb(17, 113, 187)
hslhsl(206, 83%, 40%)
oklchoklch(0.537 0.141 248.9)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1552

Colors that go with #1171bb

Charcoal, Crimson and Amber 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 →

#bb5b11

#11bbaf · #111dbb

#bb1171 · #71bb11

Split-complementary

Open in tool →

#bb111d · #bbaf11

#af11bb · #bb5b11 · #1dbb11

Contrast

#1171bb as textRatioAAAA largeAAAFix
Aaon white
5.12:1passpassfail
  • AAA: use #0e5b95 as the text (7.12:1)
Aaon black
4.1:1failpassfail
  • AA: use #137ac9 as the text (4.65:1)
  • AAA: use #329bec as the text (7.04:1)
  • AA: or shift the background to #f2f2f2 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1171bb as the background.

Brands using this color

Fonts for this mood

#1171bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1171bb
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 #1171bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1171bb-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