Color

#5337c3

#5337c3
hex#5337c3
rgbrgb(83, 55, 195)
hslhsl(252, 56%, 49%)
oklchoklch(0.461 0.204 284.2)
Closest name: Blurple (#5539cc)Relative luminance 0.0851

Colors that go with #5337c3

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 →

#a7c337

#3761c3 · #9937c3

#c35337 · #37c353

Split-complementary

Open in tool →

#c39937 · #61c337

#c33761 · #a7c337 · #37c399

Contrast

#5337c3 as textRatioAAAA largeAAAFix
Aaon white
7.77:1passpasspassPasses AAA — no fix needed.
Aaon black
2.7:1failfailfail
  • AA: use #7a64d3 as the text (4.59:1)
  • AAA: use #9c8cde as the text (7.22:1)
  • AA: or shift the background to #c7c7c7 (4.6:1)
  • AAA: or shift the background to #f5f5f5 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5337c3 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

#5337c3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5337c3
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 #5337c3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5337c3-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