Color

#0665cb

#0665cb
hex#0665cb
rgbrgb(6, 101, 203)
hslhsl(211, 94%, 41%)
oklchoklch(0.52 0.176 256.3)
Closest name: God of Rain (#4466cc)Relative luminance 0.1366

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cb6c06

#06c8cb · #0a06cb

#cb0665 · #65cb06

Split-complementary

Open in tool →

#cb0a06 · #c8cb06

#cb06c8 · #cb6c06 · #06cb0a

Contrast

#0665cb as textRatioAAAA largeAAAFix
Aaon white
5.63:1passpassfail
  • AAA: use #0556ad as the text (7.14:1)
Aaon black
3.73:1failpassfail
  • AA: use #0772e4 as the text (4.54:1)
  • AAA: use #3e98f9 as the text (7.06:1)
  • AA: or shift the background to #e6e6e6 (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 #0665cb as the background.

Brands using this color

Fonts for this mood

#0665cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0665cb
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 #0665cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0665cb-9cabc4-df534e-1f202d-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