Color

#634497

#634497
hex#634497
rgbrgb(99, 68, 151)
hslhsl(262, 38%, 43%)
oklchoklch(0.462 0.132 298.3)
Closest name: Lords of the Night (#664488)Relative luminance 0.0902

Colors that go with #634497

Charcoal, Royal Blue and 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#799744

#444f97 · #8c4497

#976344 · #449763

Split-complementary

Open in tool →

#978c44 · #4f9744

#97444f · #799744 · #44978c

Contrast

#634497 as textRatioAAAA largeAAAFix
Aaon white
7.49:1passpasspassPasses AAA — no fix needed.
Aaon black
2.8:1failfailfail
  • AA: use #8668bb as the text (4.71:1)
  • AAA: use #a28bcb as the text (7.09:1)
  • AA: or shift the background to #c9c9c9 (4.52:1)
  • AAA: or shift the background to #fafafa (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #634497 as the background.

Brands using this color

Fonts for this mood

#634497 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #634497
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 #634497 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/634497-af9cc4-dfce4e-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