Color

#4b516c

#4b516c
hex#4b516c
rgbrgb(75, 81, 108)
hslhsl(229, 18%, 36%)
oklchoklch(0.441 0.045 274.7)
Closest name: Freefall (#565266)Relative luminance 0.0846

Colors that go with #4b516c

Steel Blue, Blue and Cadet Blue 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.

Real palettes that use #4b516c

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#6c664b

#4b626c · #564b6c

#6c4b51 · #516c4b

Split-complementary

Open in tool →

#6c564b · #626c4b

#6c4b62 · #6c664b · #4b6c56

Contrast

#4b516c as textRatioAAAA largeAAAFix
Aaon white
7.8:1passpasspassPasses AAA — no fix needed.
Aaon black
2.69:1failfailfail
  • AA: use #6c7499 as the text (4.6:1)
  • AAA: use #9096b2 as the text (7.19:1)
  • AA: or shift the background to #c7c7c7 (4.61:1)
  • AAA: or shift the background to #f5f5f5 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b516c as the background.

Brands using this color

mcpConnect your agent — build around #4b516c
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 #4b516c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b516c-9c9fc4-df7e4e-231f2d-e9eef1?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