Color

#6369bb

#6369bb
hex#6369bb
rgbrgb(99, 105, 187)
hslhsl(236, 39%, 56%)
oklchoklch(0.554 0.126 278.3)
Closest name: Loch Ness (#5f6db0)Relative luminance 0.1634

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bbb563

#6395bb · #8963bb

#bb6369 · #69bb63

Split-complementary

Open in tool →

#bb8963 · #95bb63

#bb6395 · #bbb563 · #63bb89

Contrast

#6369bb as textRatioAAAA largeAAAFix
Aaon white
4.92:1passpassfail
  • AAA: use #494fa7 as the text (7.1:1)
Aaon black
4.27:1failpassfail
  • AA: use #6a70be as the text (4.67:1)
  • AAA: use #8e92cd as the text (7.14:1)
  • AA: or shift the background to #f5f5f5 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6369bb 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

#6369bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6369bb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #6369bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6369bb-9e9cc4-df8f4e-241f2d-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