Color

#0664bc

#0664bc
hex#0664bc
rgbrgb(6, 100, 188)
hslhsl(209, 94%, 38%)
oklchoklch(0.506 0.158 254)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1278

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bc5e06

#06bcb9 · #0609bc

#bc0664 · #64bc06

Split-complementary

Open in tool →

#bc0609 · #bcb906

#b906bc · #bc5e06 · #09bc06

Contrast

#0664bc as textRatioAAAA largeAAAFix
Aaon white
5.9:1passpassfail
  • AAA: use #0557a3 as the text (7.24:1)
Aaon black
3.56:1failpassfail
  • AA: use #0774da as the text (4.52:1)
  • AAA: use #349af9 as the text (7.14:1)
  • AA: or shift the background to #e3e3e3 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0664bc 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

#0664bc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0664bc
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 #0664bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0664bc-9cacc4-df4e4e-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