Color

#0f63ff

#0f63ff
hex#0f63ff
rgbrgb(15, 99, 255)
hslhsl(219, 100%, 53%)
oklchoklch(0.559 0.243 261.9)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1625

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffab0f

#0fdbff · #330fff

#ff0f63 · #63ff0f

Split-complementary

Open in tool →

#ff330f · #dbff0f

#ff0fdb · #ffab0f · #0fff33

Contrast

#0f63ff as textRatioAAAA largeAAAFix
Aaon white
4.94:1passpassfail
  • AAA: use #004bd6 as the text (7.05:1)
Aaon black
4.25:1failpassfail
  • AA: use #1a6aff as the text (4.55:1)
  • AAA: use #5c95ff as the text (7.2:1)
  • AA: or shift the background to #f5f5f5 (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 #0f63ff as the background.

Brands using this color

Fonts for this mood

#0f63ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f63ff
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0f63ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f63ff-9ca5c4-df664e-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