Color

#603e75

#603e75
hex#603e75
rgbrgb(96, 62, 117)
hslhsl(277, 31%, 35%)
oklchoklch(0.427 0.096 311.4)
Closest name: Heartless (#623b70)Relative luminance 0.0722

Colors that go with #603e75

Charcoal, 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 →

#53753e

#443e75 · #753e6e

#75603e · #3e7560

Split-complementary

Open in tool →

#6e753e · #3e7544

#75443e · #53753e · #3e6e75

Contrast

#603e75 as textRatioAAAA largeAAAFix
Aaon white
8.6:1passpasspassPasses AAA — no fix needed.
Aaon black
2.44:1failfailfail
  • AA: use #9062ac as the text (4.53:1)
  • AAA: use #ac8ac1 as the text (7.16:1)
  • AA: or shift the background to #bdbdbd (4.57:1)
  • AAA: or shift the background to #e8e8e8 (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 #603e75 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 #603e75
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 #603e75 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/603e75-b99cc4-bdcb62-2d1f2c-eae9f1?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