Color

#0b72cb

#0b72cb
hex#0b72cb
rgbrgb(11, 114, 203)
hslhsl(208, 90%, 42%)
oklchoklch(0.549 0.161 252.2)
Closest name: Campanula (#3473b7)Relative luminance 0.1642

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cb650b

#0bcbc5 · #0b11cb

#cb0b72 · #72cb0b

Split-complementary

Open in tool →

#cb0b11 · #cbc50b

#c50bcb · #cb650b · #11cb0b

Contrast

#0b72cb as textRatioAAAA largeAAAFix
Aaon white
4.9:1passpassfail
  • AAA: use #0859a0 as the text (7.13:1)
Aaon black
4.28:1failpassfail
  • AA: use #0b77d5 as the text (4.61:1)
  • AAA: use #349af4 as the text (7.07:1)
  • AA: or shift the background to #f7f7f7 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b72cb as the background.

Brands using this color

Fonts for this mood

#0b72cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b72cb
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 #0b72cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b72cb-9cadc4-df4e51-1f212d-e9f1f1?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