Color

#4f7be3

#4f7be3
hex#4f7be3
rgbrgb(79, 123, 227)
hslhsl(222, 73%, 60%)
oklchoklch(0.604 0.165 264.7)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2137

Colors that go with #4f7be3

Charcoal, Copper 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 →

#e3b74f

#4fc6e3 · #6c4fe3

#e34f7b · #7be34f

Split-complementary

Open in tool →

#e36c4f · #c6e34f

#e34fc6 · #e3b74f · #4fe36c

Contrast

#4f7be3 as textRatioAAAA largeAAAFix
Aaon white
3.98:1failpassfail
  • AA: use #3d6ee1 as the text (4.65:1)
  • AAA: use #1e4fc2 as the text (7.11:1)
  • AA: or shift the background to #171717 (4.5:1)
Aaon black
5.27:1passpassfail
  • AAA: use #7296e9 as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f7be3 as the background.

Brands using this color

Fonts for this mood

#4f7be3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f7be3
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 #4f7be3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f7be3-9ca3c4-df6e4e-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