Color

#603aa6

#603aa6
hex#603aa6
rgbrgb(96, 58, 166)
hslhsl(261, 48%, 44%)
oklchoklch(0.453 0.165 295.2)
Closest name: rebeccapurple (#663399)Relative luminance 0.0827

Colors that go with #603aa6

Charcoal, Royal Blue and Sea Green 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 →

#80a63a

#3a4ba6 · #963aa6

#a6603a · #3aa660

Split-complementary

Open in tool →

#a6963a · #4ba63a

#a63a4b · #80a63a · #3aa696

Contrast

#603aa6 as textRatioAAAA largeAAAFix
Aaon white
7.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.65:1failfailfail
  • AA: use #8764c9 as the text (4.7:1)
  • AAA: use #a58ad6 as the text (7.21:1)
  • AA: or shift the background to #c4c4c4 (4.54:1)
  • AAA: or shift the background to #f2f2f2 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #603aa6 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

#603aa6 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #603aa6
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 #603aa6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/603aa6-af9cc4-dfcb4e-2a1f2d-e9eaf1?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