Color

#636a97

#636a97
hex#636a97
rgbrgb(99, 106, 151)
hslhsl(232, 21%, 49%)
oklchoklch(0.537 0.071 276.9)
Closest name: Dark Prince (#6b6c89)Relative luminance 0.152

Colors that go with #636a97

Charcoal, Sea Green and Dark Olive 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.

Real palettes that use #636a97

Tints & shades

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

Harmonies

Complementary

Open in tool →

#979063

#638497 · #766397

#97636a · #6a9763

Split-complementary

Open in tool →

#977663 · #849763

#976384 · #979063 · #639776

Contrast

#636a97 as textRatioAAAA largeAAAFix
Aaon white
5.2:1passpassfail
  • AAA: use #51567b as the text (7.08:1)
Aaon black
4.04:1failpassfail
  • AA: use #6b729e as the text (4.53:1)
  • AAA: use #9095b6 as the text (7.16:1)
  • AA: or shift the background to #f0f0f0 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #636a97 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 #636a97
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 #636a97 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/636a97-9c9dc4-df864e-231f2d-e9eef1?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