Color

#063bf9

#063bf9
hex#063bf9
rgbrgb(6, 59, 249)
hslhsl(227, 95%, 50%)
oklchoklch(0.488 0.278 264.3)
Closest name: C64 Blue (#003aff)Relative luminance 0.1001

Colors that go with #063bf9

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 →

#f9c406

#06b4f9 · #4b06f9

#f9063b · #3bf906

Split-complementary

Open in tool →

#f94b06 · #b4f906

#f906b4 · #f9c406 · #06f94b

Contrast

#063bf9 as textRatioAAAA largeAAAFix
Aaon white
7:1passpassfail
  • AAA: use #063af4 as the text (7.19:1)
Aaon black
3:1failpassfail
  • AA: use #426afa as the text (4.67:1)
  • AAA: use #7491fb as the text (7.19:1)
  • AA: or shift the background to #d1d1d1 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #063bf9 as the background.

Brands using this color

Fonts for this mood

#063bf9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #063bf9
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 #063bf9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/063bf9-9ca0c4-df7a4e-221f2d-e9eff1?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