Color

#0101cb

#0101cb
hex#0101cb
rgbrgb(1, 1, 203)
hslhsl(240, 99%, 40%)
oklchoklch(0.381 0.263 264.2)
Closest name: mediumblue (#0000cd)Relative luminance 0.0434

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cbcb01

#0166cb · #6601cb

#cb0101 · #01cb01

Split-complementary

Open in tool →

#cb6601 · #66cb01

#cb0166 · #cbcb01 · #01cb66

Contrast

#0101cb as textRatioAAAA largeAAAFix
Aaon white
11.24:1passpasspassPasses AAA — no fix needed.
Aaon black
1.87:1failfailfail
  • AA: use #6262fe as the text (4.7:1)
  • AAA: use #8a8afe as the text (7.15:1)
  • AA: or shift the background to #a6a6a6 (4.62:1)
  • AAA: or shift the background to #cccccc (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0101cb as the background.

Brands using this color

Fonts for this mood

#0101cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0101cb
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 #0101cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0101cb-a19cc4-df994e-251f2d-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