Color

#669beb

#669beb
hex#669beb
rgbrgb(102, 155, 235)
hslhsl(216, 77%, 66%)
oklchoklch(0.687 0.132 258.4)
Closest name: cornflowerblue (#6495ed)Relative luminance 0.3227

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ebb666

#66deeb · #7366eb

#eb669b · #9beb66

Split-complementary

Open in tool →

#eb7366 · #deeb66

#eb66de · #ebb666 · #66eb73

Contrast

#669beb as textRatioAAAA largeAAAFix
Aaon white
2.82:1failfailfail
  • AA: use #2672e3 as the text (4.57:1)
  • AAA: use #1754b0 as the text (7.16:1)
  • AA: or shift the background to #303030 (4.68:1)
  • AAA: or shift the background to #0a0a0a (7.03:1)
Aaon black
7.45:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #669beb 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

#669beb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #669beb
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 #669beb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/669beb-9ca7c4-df5f4e-201f2d-e9f0f1?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