Color

#5140bf

#5140bf
hex#5140bf
rgbrgb(81, 64, 191)
hslhsl(248, 50%, 50%)
oklchoklch(0.469 0.19 282.3)
Closest name: Blurple (#5539cc)Relative luminance 0.0918

Colors that go with #5140bf

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 →

#aebf40

#406fbf · #9140bf

#bf5140 · #40bf51

Split-complementary

Open in tool →

#bf9140 · #6fbf40

#bf406e · #aebf40 · #40bf91

Contrast

#5140bf as textRatioAAAA largeAAAFix
Aaon white
7.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.84:1failfailfail
  • AA: use #7466cc as the text (4.52:1)
  • AAA: use #968cd9 as the text (7.05:1)
  • AA: or shift the background to #cccccc (4.61:1)
  • AAA: or shift the background to #fafafa (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5140bf 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

#5140bf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5140bf
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 #5140bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5140bf-a69cc4-dfac4e-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