Color

#5145ba

#5145ba
hex#5145ba
rgbrgb(81, 69, 186)
hslhsl(246, 46%, 50%)
oklchoklch(0.473 0.177 281.9)
Closest name: Blurple (#5539cc)Relative luminance 0.0955

Colors that go with #5145ba

Medium Sea Green, Midnight Blue and Slate Gray 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.

Real palettes that use #5145ba

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#aeba45

#4574ba · #8b45ba

#ba5145 · #45ba51

Split-complementary

Open in tool →

#ba8b45 · #74ba45

#ba4574 · #aeba45 · #45ba8b

Contrast

#5145ba as textRatioAAAA largeAAAFix
Aaon white
7.22:1passpasspassPasses AAA — no fix needed.
Aaon black
2.91:1failfailfail
  • AA: use #736ac8 as the text (4.62:1)
  • AAA: use #968fd6 as the text (7.2:1)
  • AA: or shift the background to #cfcfcf (4.63:1)
  • AAA: or shift the background to #fcfcfc (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5145ba 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

#5145ba reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5145ba
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 #5145ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5145ba-a59cc4-dfa74e-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