Color

#603974

#603974
hex#603974
rgbrgb(96, 57, 116)
hslhsl(280, 34%, 34%)
oklchoklch(0.418 0.104 313.2)
Closest name: Heartless (#623b70)Relative luminance 0.0667

Colors that go with #603974

Charcoal, Sea Green and Crimson 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 →

#4d7439

#433974 · #74396a

#746139 · #397461

Split-complementary

Open in tool →

#6a7439 · #397443

#744339 · #4d7439 · #396a74

Contrast

#603974 as textRatioAAAA largeAAAFix
Aaon white
8.99:1passpasspassPasses AAA — no fix needed.
Aaon black
2.33:1failfailfail
  • AA: use #955eb0 as the text (4.51:1)
  • AAA: use #b087c4 as the text (7.11:1)
  • AA: or shift the background to #b8b8b8 (4.53:1)
  • AAA: or shift the background to #e3e3e3 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #603974 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 #603974
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 #603974 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/603974-b99fc1-b8cb62-2d1f2c-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