Color

#0b9bef

#0b9bef
hex#0b9bef
rgbrgb(11, 155, 239)
hslhsl(202, 91%, 49%)
oklchoklch(0.665 0.163 244.3)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.2975

Colors that go with #0b9bef

Charcoal, Orange Red and Bronze 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 →

#ef5f0b

#0befd0 · #0b2aef

#ef0b9b · #9bef0b

Split-complementary

Open in tool →

#ef0b2a · #efd00b

#d00bef · #ef5f0b · #2aef0b

Contrast

#0b9bef as textRatioAAAA largeAAAFix
Aaon white
3.02:1failpassfail
  • AA: use #097cbe as the text (4.53:1)
  • AAA: use #075c8d as the text (7.18:1)
  • AA: or shift the background to #2b2b2b (4.69:1)
Aaon black
6.95:1passpassfail
  • AAA: use #0b9ef4 as the text (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b9bef as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#0b9bef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b9bef
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 #0b9bef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b9bef-9cb1c4-df4e5f-1f222d-e9f1f0?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