Color

#0011cc

#0011cc
hex#0011cc
rgbrgb(0, 17, 204)
hslhsl(235, 100%, 40%)
oklchoklch(0.39 0.259 264.2)
Closest name: mediumblue (#0000cd)Relative luminance 0.0476

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ccbb00

#0077cc · #5500cc

#cc0011 · #11cc00

Split-complementary

Open in tool →

#cc5500 · #77cc00

#cc0077 · #ccbb00 · #00cc55

Contrast

#0011cc as textRatioAAAA largeAAAFix
Aaon white
10.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.95:1failfailfail
  • AA: use #5765ff as the text (4.71:1)
  • AAA: use #858fff as the text (7.37:1)
  • AA: or shift the background to #a8a8a8 (4.52:1)
  • AAA: or shift the background to #d1d1d1 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0011cc as the background.

Brands using this color

Fonts for this mood

#0011cc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0011cc
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 #0011cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0011cc-9e9cc4-df8d4e-241f2d-e9eef1?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