Color

#0147f9

#0147f9
hex#0147f9
rgbrgb(1, 71, 249)
hslhsl(223, 99%, 49%)
oklchoklch(0.505 0.267 263.5)
Closest name: C64 Blue (#003aff)Relative luminance 0.1135

Colors that go with #0147f9

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 →

#f9b301

#01c3f9 · #3701f9

#f90147 · #47f901

Split-complementary

Open in tool →

#f93701 · #c3f901

#f901c3 · #f9b301 · #01f937

Contrast

#0147f9 as textRatioAAAA largeAAAFix
Aaon white
6.42:1passpassfail
  • AAA: use #0143e9 as the text (7.05:1)
Aaon black
3.27:1failpassfail
  • AA: use #2f6afe as the text (4.61:1)
  • AAA: use #6792fe as the text (7.12:1)
  • AA: or shift the background to #d9d9d9 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0147f9 as the background.

Brands using this color

Fonts for this mood

#0147f9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0147f9
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 #0147f9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0147f9-9ca3c4-df704e-211f2d-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