Color

#4f80cf

#4f80cf
hex#4f80cf
rgbrgb(79, 128, 207)
hslhsl(217, 57%, 56%)
oklchoklch(0.602 0.132 259.5)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2161

Colors that go with #4f80cf

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 →

#cf9e4f

#4fc0cf · #5e4fcf

#cf4f80 · #80cf4f

Split-complementary

Open in tool →

#cf5e4f · #c0cf4f

#cf4fc0 · #cf9e4f · #4fcf5e

Contrast

#4f80cf as textRatioAAAA largeAAAFix
Aaon white
3.95:1failpassfail
  • AA: use #3f74ca as the text (4.6:1)
  • AAA: use #2b569c as the text (7.21:1)
  • AA: or shift the background to #171717 (4.54:1)
Aaon black
5.32:1passpassfail
  • AAA: use #6f97d8 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f80cf as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#4f80cf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f80cf
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 #4f80cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f80cf-9ca7c4-df624e-201f2d-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