Color

#0a55eb

#0a55eb
hex#0a55eb
rgbrgb(10, 85, 235)
hslhsl(220, 92%, 48%)
oklchoklch(0.515 0.235 262.4)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1256

Colors that go with #0a55eb

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eba00a

#0ac5eb · #2f0aeb

#eb0a55 · #55eb0a

Split-complementary

Open in tool →

#eb2f0a · #c5eb0a

#eb0ac5 · #eba00a · #0aeb2f

Contrast

#0a55eb as textRatioAAAA largeAAAFix
Aaon white
5.98:1passpassfail
  • AAA: use #094cd3 as the text (7.03:1)
Aaon black
3.51:1failpassfail
  • AA: use #286cf6 as the text (4.57:1)
  • AAA: use #6294f8 as the text (7.11:1)
  • AA: or shift the background to #e0e0e0 (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 #0a55eb as the background.

Brands using this color

Fonts for this mood

#0a55eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a55eb
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 #0a55eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a55eb-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