Color

#603871

#603871
hex#603871
rgbrgb(96, 56, 113)
hslhsl(282, 34%, 33%)
oklchoklch(0.414 0.102 315.1)
Closest name: Heartless (#623b70)Relative luminance 0.0651

Colors that go with #603871

Sea Green, Denim and Powder Blue 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.

Real palettes that use #603871

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#497138

#433871 · #713865

#716038 · #387160

Split-complementary

Open in tool →

#657138 · #387143

#714338 · #497138 · #386571

Contrast

#603871 as textRatioAAAA largeAAAFix
Aaon white
9.12:1passpasspassPasses AAA — no fix needed.
Aaon black
2.3:1failfailfail
  • AA: use #975eb0 as the text (4.54:1)
  • AAA: use #b287c4 as the text (7.16:1)
  • AA: or shift the background to #b8b8b8 (4.6:1)
  • AAA: or shift the background to #e3e3e3 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #603871 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 #603871
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 #603871 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/603871-ba9fc1-b4cb62-2d1f2b-ebe9f1?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