Color

#6367b0

#6367b0
hex#6367b0
rgbrgb(99, 103, 176)
hslhsl(237, 33%, 54%)
oklchoklch(0.544 0.113 279.6)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1549

Colors that go with #6367b0

Charcoal, Amber 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 →

#b0ad63

#638eb0 · #8663b0

#b06367 · #67b063

Split-complementary

Open in tool →

#b08663 · #8eb063

#b0638e · #b0ad63 · #63b086

Contrast

#6367b0 as textRatioAAAA largeAAAFix
Aaon white
5.13:1passpassfail
  • AAA: use #4d5199 as the text (7.11:1)
Aaon black
4.1:1failpassfail
  • AA: use #6d71b6 as the text (4.69:1)
  • AAA: use #8f92c7 as the text (7.1:1)
  • AA: or shift the background to #f2f2f2 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6367b0 as the background.

Brands using this color

mcpConnect your agent — build around #6367b0
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 #6367b0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6367b0-9f9cc4-df924e-251f2d-e9edf1?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