Color

#064cbc

#064cbc
hex#064cbc
rgbrgb(6, 76, 188)
hslhsl(217, 94%, 38%)
oklchoklch(0.455 0.187 260.8)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0884

Colors that go with #064cbc

Charcoal, Crimson and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bc7606

#06a7bc · #1b06bc

#bc064c · #4cbc06

Split-complementary

Open in tool →

#bc1b06 · #a7bc06

#bc06a7 · #bc7606 · #06bc1b

Contrast

#064cbc as textRatioAAAA largeAAAFix
Aaon white
7.59:1passpasspassPasses AAA — no fix needed.
Aaon black
2.77:1failfailfail
  • AA: use #166df8 as the text (4.58:1)
  • AAA: use #5795fa as the text (7.08:1)
  • AA: or shift the background to #c9c9c9 (4.58:1)
  • AAA: or shift the background to #f7f7f7 (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 #064cbc as the background.

Brands using this color

Fonts for this mood

#064cbc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #064cbc
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #064cbc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/064cbc-9ca7c4-df624e-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