Color

#0b87da

#0b87da
hex#0b87da
rgbrgb(11, 135, 218)
hslhsl(204, 90%, 45%)
oklchoklch(0.607 0.157 247.2)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2246

Colors that go with #0b87da

Charcoal, Crimson and Copper 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 →

#da5e0b

#0bdac5 · #0b20da

#da0b87 · #87da0b

Split-complementary

Open in tool →

#da0b20 · #dac50b

#c50bda · #da5e0b · #20da0b

Contrast

#0b87da as textRatioAAAA largeAAAFix
Aaon white
3.82:1failpassfail
  • AA: use #0a78c2 as the text (4.69:1)
  • AAA: use #085a91 as the text (7.29:1)
  • AA: or shift the background to #1a1a1a (4.55:1)
Aaon black
5.49:1passpassfail
  • AAA: use #169bf3 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b87da as the background.

Brands using this color

Fonts for this mood

#0b87da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b87da
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 #0b87da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b87da-9cafc4-df4e5a-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