Color

#4f71bf

#4f71bf
hex#4f71bf
rgbrgb(79, 113, 191)
hslhsl(222, 47%, 53%)
oklchoklch(0.56 0.127 264.8)
Closest name: Loch Ness (#5f6db0)Relative luminance 0.1723

Colors that go with #4f71bf

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 →

#bf9e4f

#4fa9bf · #654fbf

#bf4f71 · #71bf4f

Split-complementary

Open in tool →

#bf654f · #a9bf4f

#bf4fa9 · #bf9e4f · #4fbf65

Contrast

#4f71bf as textRatioAAAA largeAAAFix
Aaon white
4.72:1passpassfail
  • AAA: use #37559a as the text (7.17:1)
Aaon black
4.45:1failpassfail
  • AA: use #5374c1 as the text (4.64:1)
  • AAA: use #7c95d0 as the text (7.07:1)
  • AA: or shift the background to #fafafa (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f71bf 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

#4f71bf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f71bf
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 #4f71bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f71bf-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