Color

#503ce7

#503ce7
hex#503ce7
rgbrgb(80, 60, 231)
hslhsl(247, 78%, 57%)
oklchoklch(0.5 0.242 278.3)
Closest name: Meteor Shower (#5533ff)Relative luminance 0.1071

Colors that go with #503ce7

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 →

#d3e73c

#3c7de7 · #a53ce7

#e7503c · #3ce750

Split-complementary

Open in tool →

#e7a53c · #7de73c

#e73c7d · #d3e73c · #3ce7a5

Contrast

#503ce7 as textRatioAAAA largeAAAFix
Aaon white
6.69:1passpassfail
  • AAA: use #4c37e6 as the text (7.01:1)
Aaon black
3.14:1failpassfail
  • AA: use #7060eb as the text (4.56:1)
  • AAA: use #9589f0 as the text (7.11:1)
  • AA: or shift the background to #d4d4d4 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #503ce7 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

#503ce7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #503ce7
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 #503ce7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/503ce7-a59cc4-dfaa4e-271f2d-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