Color

#5137ae

#5137ae
hex#5137ae
rgbrgb(81, 55, 174)
hslhsl(253, 52%, 45%)
oklchoklch(0.441 0.179 286.6)
Closest name: Blueberry (#464196)Relative luminance 0.0754

Colors that go with #5137ae

Charcoal, Denim 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 →

#95ae37

#3759ae · #8d37ae

#ae5137 · #37ae51

Split-complementary

Open in tool →

#ae8d37 · #59ae37

#ae3759 · #95ae37 · #37ae8d

Contrast

#5137ae as textRatioAAAA largeAAAFix
Aaon white
8.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.51:1failfailfail
  • AA: use #7b64ce as the text (4.56:1)
  • AAA: use #9c8bda as the text (7.12:1)
  • AA: or shift the background to #bfbfbf (4.55:1)
  • AAA: or shift the background to #ebebeb (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5137ae 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

#5137ae reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5137ae
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 #5137ae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5137ae-a99cc4-dfb84e-281f2d-e9ebf1?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