Color

#727bb1

#727bb1
hex#727bb1
rgbrgb(114, 123, 177)
hslhsl(231, 29%, 57%)
oklchoklch(0.597 0.083 276.3)
Closest name: Flood (#6677bb)Relative luminance 0.2092

Colors that go with #727bb1

Charcoal, Copper and Sea Green 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 →

#b1a872

#729bb1 · #8872b1

#b1727b · #7bb172

Split-complementary

Open in tool →

#b18872 · #9bb172

#b1729b · #b1a872 · #72b188

Contrast

#727bb1 as textRatioAAAA largeAAAFix
Aaon white
4.05:1failpassfail
  • AA: use #6872ac as the text (4.57:1)
  • AAA: use #4c558a as the text (7.06:1)
  • AA: or shift the background to #141414 (4.55:1)
Aaon black
5.18:1passpassfail
  • AAA: use #8c94c0 as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #727bb1 as the background.

Brands using this color

mcpConnect your agent — build around #727bb1
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 #727bb1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/727bb1-9c9ec4-df834e-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