Color

#0b50da

#0b50da
hex#0b50da
rgbrgb(11, 80, 218)
hslhsl(220, 90%, 45%)
oklchoklch(0.49 0.22 262.4)
Closest name: Denim (#1560bd)Relative luminance 0.1087

Colors that go with #0b50da

Charcoal, Crimson and Amber 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.

Real palettes that use #0b50da

Tints & shades

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

Harmonies

Complementary

Open in tool →

#da950b

#0bb8da · #2e0bda

#da0b50 · #50da0b

Split-complementary

Open in tool →

#da2e0b · #b8da0b

#da0bb8 · #da950b · #0bda2e

Contrast

#0b50da as textRatioAAAA largeAAAFix
Aaon white
6.62:1passpassfail
  • AAA: use #0b4dd0 as the text (7.03:1)
Aaon black
3.17:1failpassfail
  • AA: use #2a6df4 as the text (4.59:1)
  • AAA: use #6495f7 as the text (7.18:1)
  • AA: or shift the background to #d6d6d6 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b50da as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0b50da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b50da
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 #0b50da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b50da-9ca5c4-df694e-211f2d-e9f0f1?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