Color

#4f73cf

#4f73cf
hex#4f73cf
rgbrgb(79, 115, 207)
hslhsl(223, 57%, 56%)
oklchoklch(0.575 0.147 265.9)
Closest name: God of Rain (#4466cc)Relative luminance 0.1843

Colors that go with #4f73cf

Charcoal, Sea Green 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 →

#cfab4f

#4fb3cf · #6b4fcf

#cf4f73 · #73cf4f

Split-complementary

Open in tool →

#cf6b4f · #b3cf4f

#cf4fb3 · #cfab4f · #4fcf6b

Contrast

#4f73cf as textRatioAAAA largeAAAFix
Aaon white
4.48:1failpassfail
  • AA: use #4b70ce as the text (4.66:1)
  • AAA: use #2f53ac as the text (7.11:1)
  • AA: or shift the background to #050505 (4.55:1)
Aaon black
4.69:1passpassfail
  • AAA: use #7b96db as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f73cf as the background.

Brands using this color

Fonts for this mood

#4f73cf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f73cf
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 #4f73cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f73cf-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