Color

#6699c2

#6699c2
hex#6699c2
rgbrgb(102, 153, 194)
hslhsl(207, 43%, 58%)
oklchoklch(0.663 0.082 243.7)
Closest name: Canadian Tuxedo (#579aca)Relative luminance 0.295

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c28f66

#66c2bd · #666ac2

#c26699 · #99c266

Split-complementary

Open in tool →

#c2666a · #c2bd66

#bd66c2 · #c28f66 · #6ac266

Contrast

#6699c2 as textRatioAAAA largeAAAFix
Aaon white
3.04:1failpassfail
  • AA: use #437aa8 as the text (4.58:1)
  • AAA: use #315a7c as the text (7.28:1)
  • AA: or shift the background to #2b2b2b (4.65:1)
Aaon black
6.9:1passpassfail
  • AAA: use #699bc3 as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6699c2 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

#6699c2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6699c2
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 #6699c2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6699c2-9cadc4-df4e53-1f212d-e9f1f1?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