Color

#5136bf

#5136bf
hex#5136bf
rgbrgb(81, 54, 191)
hslhsl(252, 56%, 48%)
oklchoklch(0.455 0.201 284.1)
Closest name: Blurple (#5539cc)Relative luminance 0.0815

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a4bf36

#365fbf · #9636bf

#bf5136 · #36bf51

Split-complementary

Open in tool →

#bf9636 · #5fbf36

#bf365f · #a4bf36 · #36bf96

Contrast

#5136bf as textRatioAAAA largeAAAFix
Aaon white
7.99:1passpasspassPasses AAA — no fix needed.
Aaon black
2.63:1failfailfail
  • AA: use #7a64d3 as the text (4.59:1)
  • AAA: use #9c8cde as the text (7.22:1)
  • AA: or shift the background to #c4c4c4 (4.58:1)
  • AAA: or shift the background to #f0f0f0 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5136bf 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

#5136bf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5136bf
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #5136bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5136bf-a99cc4-dfb64e-281f2d-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