Color

#0b6cbc

#0b6cbc
hex#0b6cbc
rgbrgb(11, 108, 188)
hslhsl(207, 89%, 39%)
oklchoklch(0.525 0.149 251.1)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1443

Colors that go with #0b6cbc

Charcoal, Crimson and Sienna lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bc5b0b

#0bbcb3 · #0b14bc

#bc0b6c · #6cbc0b

Split-complementary

Open in tool →

#bc0b14 · #bcb30b

#b30bbc · #bc5b0b · #14bc0b

Contrast

#0b6cbc as textRatioAAAA largeAAAFix
Aaon white
5.4:1passpassfail
  • AAA: use #09599a as the text (7.22:1)
Aaon black
3.89:1failpassfail
  • AA: use #0c77cf as the text (4.56:1)
  • AAA: use #309bf3 as the text (7.11:1)
  • AA: or shift the background to #ebebeb (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b6cbc as the background.

Brands using this color

Fonts for this mood

#0b6cbc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b6cbc
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0b6cbc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b6cbc-9cadc4-df4e53-1f212d-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