Color

#4f559c

#4f559c
hex#4f559c
rgbrgb(79, 85, 156)
hslhsl(235, 33%, 46%)
oklchoklch(0.479 0.113 277.6)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1056

Colors that go with #4f559c

Charcoal, Amber and 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9c964f

#4f7c9c · #6f4f9c

#9c4f55 · #559c4f

Split-complementary

Open in tool →

#9c6f4f · #7c9c4f

#9c4f7c · #9c964f · #4f9c6f

Contrast

#4f559c as textRatioAAAA largeAAAFix
Aaon white
6.75:1passpassfail
  • AAA: use #4b5195 as the text (7.22:1)
Aaon black
3.11:1failpassfail
  • AA: use #6a70b4 as the text (4.59:1)
  • AAA: use #8f94c7 as the text (7.23:1)
  • AA: or shift the background to #d4d4d4 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f559c as the background.

Brands using this color

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

mcpConnect your agent — build around #4f559c
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 #4f559c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f559c-9e9cc4-df8d4e-241f2d-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