Color

#503e7e

#503e7e
hex#503e7e
rgbrgb(80, 62, 126)
hslhsl(257, 34%, 37%)
oklchoklch(0.415 0.104 294.4)
Closest name: darkslateblue (#483d8b)Relative luminance 0.0666

Colors that go with #503e7e

Steel Blue, Crimson and Denim 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 →

#6c7e3e

#3e4c7e · #713e7e

#7e503e · #3e7e50

Split-complementary

Open in tool →

#7e713e · #4c7e3e

#7e3e4c · #6c7e3e · #3e7e71

Contrast

#503e7e as textRatioAAAA largeAAAFix
Aaon white
9.01:1passpasspassPasses AAA — no fix needed.
Aaon black
2.33:1failfailfail
  • AA: use #7e69b5 as the text (4.57:1)
  • AAA: use #9e8ec7 as the text (7.15:1)
  • AA: or shift the background to #b8b8b8 (4.54:1)
  • AAA: or shift the background to #e3e3e3 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #503e7e as the background.

Brands using this color

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

mcpConnect your agent — build around #503e7e
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 #503e7e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/503e7e-ac9cc4-dfc24e-291f2d-e9ebf1?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