Color

#0b4d98

#0b4d98
hex#0b4d98
rgbrgb(11, 77, 152)
hslhsl(212, 87%, 32%)
oklchoklch(0.428 0.137 256)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0765

Colors that go with #0b4d98

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 →

#99560b

#0b9499 · #0f0b99

#990b4d · #4d990b

Split-complementary

Open in tool →

#990f0b · #94990b

#990b94 · #99560b · #0b990f

Contrast

#0b4d98 as textRatioAAAA largeAAAFix
Aaon white
8.3:1passpasspassPasses AAA — no fix needed.
Aaon black
2.53:1failfailfail
  • AA: use #1073e5 as the text (4.61:1)
  • AAA: use #4a98f2 as the text (7.06:1)
  • AA: or shift the background to #bfbfbf (4.52:1)
  • AAA: or shift the background to #ededed (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 #0b4d98 as the background.

Brands using this color

Fonts for this mood

#0b4d98 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b4d98
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 #0b4d98 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b4d98-9caac4-df564e-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