Color

#0728ab

#0728ab
hex#0728ab
rgbrgb(7, 40, 171)
hslhsl(228, 92%, 35%)
oklchoklch(0.373 0.206 264.7)
Closest name: Blue Hour (#0034ab)Relative luminance 0.045

Colors that go with #0728ab

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 →

#ab8b07

#077aab · #3807ab

#ab0728 · #28ab07

Split-complementary

Open in tool →

#ab3807 · #7aab07

#ab077a · #ab8b07 · #07ab38

Contrast

#0728ab as textRatioAAAA largeAAAFix
Aaon white
11.05:1passpasspassPasses AAA — no fix needed.
Aaon black
1.9:1failfailfail
  • AA: use #4569f7 as the text (4.62:1)
  • AAA: use #7690f9 as the text (7.13:1)
  • AA: or shift the background to #a6a6a6 (4.54:1)
  • AAA: or shift the background to #cfcfcf (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0728ab 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

#0728ab reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0728ab
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 #0728ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0728ab-9c9fc4-df7c4e-231f2d-e9eff1?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