Color

#503159

#503159
hex#503159
rgbrgb(80, 49, 89)
hslhsl(287, 29%, 27%)
oklchoklch(0.368 0.077 318.4)
Closest name: Long Passionate Night (#5b365e)Relative luminance 0.0462

Colors that go with #503159

Sea Green, Blue and Blush Pink 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 →

#3a5931

#3c3159 · #59314e

#595031 · #315950

Split-complementary

Open in tool →

#4e5931 · #31593c

#593c31 · #3a5931 · #314e59

Contrast

#503159 as textRatioAAAA largeAAAFix
Aaon white
10.91:1passpasspassPasses AAA — no fix needed.
Aaon black
1.92:1failfailfail
  • AA: use #9961a8 as the text (4.63:1)
  • AAA: use #b289be as the text (7.21:1)
  • AA: or shift the background to #a8a8a8 (4.59:1)
  • AAA: or shift the background to #cfcfcf (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #503159 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

#503159 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #503159
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 #503159 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/503159-bd9fc1-abcb62-2d1f2a-ece9f1?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