Color

#4f50ab

#4f50ab
hex#4f50ab
rgbrgb(79, 80, 171)
hslhsl(239, 37%, 49%)
oklchoklch(0.48 0.142 279.1)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1034

Colors that go with #4f50ab

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 →

#abaa4f

#4f7eab · #7b4fab

#ab4f50 · #50ab4f

Split-complementary

Open in tool →

#ab7b4f · #7eab4f

#ab4f7e · #abaa4f · #4fab7b

Contrast

#4f50ab as textRatioAAAA largeAAAFix
Aaon white
6.84:1passpassfail
Aaon black
3.07:1failpassfail
  • AA: use #6c6ebc as the text (4.59:1)
  • AAA: use #8f90cc as the text (7.03:1)
  • AA: or shift the background to #d4d4d4 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f50ab 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

#4f50ab reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f50ab
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 #4f50ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f50ab-a09cc4-df964e-251f2d-e9edf1?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