Color

#0648b2

#0648b2
hex#0648b2
rgbrgb(6, 72, 178)
hslhsl(217, 93%, 36%)
oklchoklch(0.438 0.179 260.7)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0789

Colors that go with #0648b2

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 →

#b17006

#069db1 · #1a06b1

#b10648 · #48b106

Split-complementary

Open in tool →

#b11a06 · #9db106

#b1069d · #b17006 · #06b11a

Contrast

#0648b2 as textRatioAAAA largeAAAFix
Aaon white
8.15:1passpasspassPasses AAA — no fix needed.
Aaon black
2.58:1failfailfail
  • AA: use #186df7 as the text (4.57:1)
  • AAA: use #5895f9 as the text (7.08:1)
  • AA: or shift the background to #c2c2c2 (4.57:1)
  • AAA: or shift the background to #f0f0f0 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0648b2 as the background.

Brands using this color

Fonts for this mood

#0648b2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0648b2
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 #0648b2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0648b2-9ca7c4-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