Color

#5748cb

#5748cb
hex#5748cb
rgbrgb(87, 72, 203)
hslhsl(247, 56%, 54%)
oklchoklch(0.497 0.194 281.9)
Closest name: Blurple (#5539cc)Relative luminance 0.1097

Colors that go with #5748cb

Charcoal, Sea Green and Amber 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 →

#bccb48

#487acb · #9948cb

#cb5748 · #48cb57

Split-complementary

Open in tool →

#cb9948 · #7acb48

#cb487a · #bccb48 · #48cb99

Contrast

#5748cb as textRatioAAAA largeAAAFix
Aaon white
6.57:1passpassfail
  • AAA: use #5040c9 as the text (7.2:1)
Aaon black
3.19:1failpassfail
  • AA: use #7468d4 as the text (4.67:1)
  • AAA: use #958cde as the text (7.08:1)
  • AA: or shift the background to #d6d6d6 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5748cb 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

#5748cb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5748cb
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 #5748cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5748cb-a59cc4-dfaa4e-271f2d-e9ecf1?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