Color

#5437e1

#5437e1
hex#5437e1
rgbrgb(84, 55, 225)
hslhsl(250, 74%, 55%)
oklchoklch(0.491 0.239 280.7)
Closest name: Blurple (#5539cc)Relative luminance 0.1005

Colors that go with #5437e1

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 →

#c5e137

#3770e1 · #a937e1

#e15437 · #37e154

Split-complementary

Open in tool →

#e1a937 · #70e137

#e13770 · #c5e137 · #37e1a9

Contrast

#5437e1 as textRatioAAAA largeAAAFix
Aaon white
6.98:1passpassfail
  • AAA: use #5033e1 as the text (7.24:1)
Aaon black
3.01:1failpassfail
  • AA: use #765fe7 as the text (4.56:1)
  • AAA: use #9887ed as the text (7.02:1)
  • AA: or shift the background to #d1d1d1 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5437e1 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

#5437e1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5437e1
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 #5437e1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5437e1-a79cc4-dfb14e-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