Color

#4f8bbf

#4f8bbf
hex#4f8bbf
rgbrgb(79, 139, 191)
hslhsl(208, 47%, 53%)
oklchoklch(0.618 0.101 246.5)
Closest name: steelblue (#4682b4)Relative luminance 0.2389

Colors that go with #4f8bbf

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 →

#bf834f

#4fbfbc · #4f53bf

#bf4f8b · #8bbf4f

Split-complementary

Open in tool →

#bf4f53 · #bfbc4f

#bc4fbf · #bf834f · #53bf4f

Contrast

#4f8bbf as textRatioAAAA largeAAAFix
Aaon white
3.63:1failpassfail
  • AA: use #3e79ac as the text (4.63:1)
  • AAA: use #2f5c83 as the text (7.05:1)
  • AA: or shift the background to #1f1f1f (4.54:1)
Aaon black
5.78:1passpassfail
  • AAA: use #659ac8 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f8bbf 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

#4f8bbf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f8bbf
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 #4f8bbf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f8bbf-9cadc4-df4e51-1f212d-e9f1f1?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