Color

#4f72ab

#4f72ab
hex#4f72ab
rgbrgb(79, 114, 171)
hslhsl(217, 37%, 49%)
oklchoklch(0.551 0.098 259.8)
Closest name: Blue Triumph (#4376ab)Relative luminance 0.1664

Colors that go with #4f72ab

Charcoal, Sea Green and Sienna 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 →

#ab884f

#4fa0ab · #5a4fab

#ab4f72 · #72ab4f

Split-complementary

Open in tool →

#ab5a4f · #a0ab4f

#ab4fa0 · #ab884f · #4fab5a

Contrast

#4f72ab as textRatioAAAA largeAAAFix
Aaon white
4.85:1passpassfail
  • AAA: use #3d5985 as the text (7.08:1)
Aaon black
4.33:1failpassfail
  • AA: use #5477b0 as the text (4.64:1)
  • AAA: use #7e99c4 as the text (7.24:1)
  • AA: or shift the background to #f7f7f7 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f72ab 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

#4f72ab reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f72ab
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 #4f72ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f72ab-9ca7c4-df624e-201f2d-e9f0f1?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