Color

#1109aa

#1109aa
hex#1109aa
rgbrgb(17, 9, 170)
hslhsl(243, 90%, 35%)
oklchoklch(0.343 0.224 267)
Closest name: Cobalt (#030aa7)Relative luminance 0.0322

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a2aa09

#0951aa · #6109aa

#aa1109 · #09aa11

Split-complementary

Open in tool →

#aa6109 · #51aa09

#aa0951 · #a2aa09 · #09aa61

Contrast

#1109aa as textRatioAAAA largeAAAFix
Aaon white
12.78:1passpasspassPasses AAA — no fix needed.
Aaon black
1.64:1failfailfail
  • AA: use #675ff7 as the text (4.56:1)
  • AAA: use #908bf9 as the text (7.25:1)
  • AA: or shift the background to #9c9c9c (4.65:1)
  • AAA: or shift the background to #c2c2c2 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1109aa 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

#1109aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1109aa
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 #1109aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1109aa-a39cc4-dfa04e-261f2d-e9edf1?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