Color

#1177bb

#1177bb
hex#1177bb
rgbrgb(17, 119, 187)
hslhsl(204, 83%, 40%)
oklchoklch(0.551 0.135 245.7)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.169

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bb5511

#11bbaa · #1122bb

#bb1177 · #77bb11

Split-complementary

Open in tool →

#bb1122 · #bbaa11

#aa11bb · #bb5511 · #22bb11

Contrast

#1177bb as textRatioAAAA largeAAAFix
Aaon white
4.79:1passpassfail
  • AAA: use #0d5c91 as the text (7.1:1)
Aaon black
4.38:1failpassfail
  • AA: use #127abf as the text (4.56:1)
  • AAA: use #289deb as the text (7.11:1)
  • AA: or shift the background to #fafafa (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1177bb as the background.

Brands using this color

Fonts for this mood

#1177bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1177bb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #1177bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1177bb-9cafc4-df4e5a-1f222d-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