Color

#0b5ebc

#0b5ebc
hex#0b5ebc
rgbrgb(11, 94, 188)
hslhsl(212, 89%, 39%)
oklchoklch(0.493 0.165 256.5)
Closest name: Denim (#1560bd)Relative luminance 0.1171

Colors that go with #0b5ebc

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 →

#bc690b

#0bb6bc · #110bbc

#bc0b5e · #5ebc0b

Split-complementary

Open in tool →

#bc110b · #b6bc0b

#bc0bb6 · #bc690b · #0bbc11

Contrast

#0b5ebc as textRatioAAAA largeAAAFix
Aaon white
6.28:1passpassfail
  • AAA: use #0a56ae as the text (7.11:1)
Aaon black
3.34:1failpassfail
  • AA: use #0d73e7 as the text (4.62:1)
  • AAA: use #4898f4 as the text (7.07:1)
  • AA: or shift the background to #dbdbdb (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b5ebc as the background.

Brands using this color

Fonts for this mood

#0b5ebc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b5ebc
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 #0b5ebc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b5ebc-9caac4-df564e-1f202d-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