Color

#0f63eb

#0f63eb
hex#0f63eb
rgbrgb(15, 99, 235)
hslhsl(217, 88%, 49%)
oklchoklch(0.542 0.219 260.7)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1502

Colors that go with #0f63eb

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 →

#eb970f

#0fd1eb · #290feb

#eb0f63 · #63eb0f

Split-complementary

Open in tool →

#eb290f · #d1eb0f

#eb0fd1 · #eb970f · #0feb29

Contrast

#0f63eb as textRatioAAAA largeAAAFix
Aaon white
5.24:1passpassfail
  • AAA: use #0c51c0 as the text (7.11:1)
Aaon black
4:1failpassfail
  • AA: use #1e6ff1 as the text (4.6:1)
  • AAA: use #5c96f5 as the text (7.14:1)
  • AA: or shift the background to #f0f0f0 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f63eb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0f63eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f63eb
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 #0f63eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f63eb-9ca7c4-df624e-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