Color

#0559eb

#0559eb
hex#0559eb
rgbrgb(5, 89, 235)
hslhsl(218, 96%, 47%)
oklchoklch(0.522 0.231 261.7)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1318

Colors that go with #0559eb

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 →

#eb9705

#05cceb · #2305eb

#eb0559 · #59eb05

Split-complementary

Open in tool →

#eb2305 · #cceb05

#eb05cc · #eb9705 · #05eb23

Contrast

#0559eb as textRatioAAAA largeAAAFix
Aaon white
5.78:1passpassfail
  • AAA: use #044ecd as the text (7.06:1)
Aaon black
3.64:1failpassfail
  • AA: use #196cfa as the text (4.57:1)
  • AAA: use #5a95fc as the text (7.14:1)
  • AA: or shift the background to #e3e3e3 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0559eb as the background.

Brands using this color

Fonts for this mood

#0559eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0559eb
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 #0559eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0559eb-9ca6c4-df644e-201f2d-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