Color

#504bdd

#504bdd
hex#504bdd
rgbrgb(80, 75, 221)
hslhsl(242, 68%, 58%)
oklchoklch(0.512 0.215 277.2)
Closest name: Blurple (#5539cc)Relative luminance 0.1196

Colors that go with #504bdd

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 →

#d8dd4b

#4b8fdd · #994bdd

#dd504b · #4bdd50

Split-complementary

Open in tool →

#dd994b · #8fdd4b

#dd4b8f · #d8dd4b · #4bdd99

Contrast

#504bdd as textRatioAAAA largeAAAFix
Aaon white
6.19:1passpassfail
  • AAA: use #433eda as the text (7.14:1)
Aaon black
3.39:1failpassfail
  • AA: use #6965e2 as the text (4.56:1)
  • AAA: use #8e8be9 as the text (7.02:1)
  • AA: or shift the background to #dedede (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #504bdd as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#504bdd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #504bdd
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 #504bdd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/504bdd-a29cc4-df9e4e-261f2d-e9edf1?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