Color

#1155df

#1155df
hex#1155df
rgbrgb(17, 85, 223)
hslhsl(220, 86%, 47%)
oklchoklch(0.505 0.22 262.3)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1194

Tints & shades

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

Harmonies

Complementary

Open in tool →

#df9a11

#11bddf · #3311df

#df1155 · #55df11

Split-complementary

Open in tool →

#df3311 · #bddf11

#df11bd · #df9a11 · #11df33

Contrast

#1155df as textRatioAAAA largeAAAFix
Aaon white
6.2:1passpassfail
  • AAA: use #0f4ecc as the text (7.04:1)
Aaon black
3.39:1failpassfail
  • AA: use #2e6fef as the text (4.64:1)
  • AAA: use #6796f4 as the text (7.25:1)
  • AA: or shift the background to #dedede (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1155df as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1155df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1155df
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 #1155df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1155df-9ca5c4-df694e-211f2d-e9f0f1?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