Color

#0b34bc

#0b34bc
hex#0b34bc
rgbrgb(11, 52, 188)
hslhsl(226, 89%, 39%)
oklchoklch(0.412 0.214 264.5)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0616

Colors that go with #0b34bc

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 →

#bc930b

#0b8dbc · #3a0bbc

#bc0b34 · #34bc0b

Split-complementary

Open in tool →

#bc3a0b · #8dbc0b

#bc0b8d · #bc930b · #0bbc3a

Contrast

#0b34bc as textRatioAAAA largeAAAFix
Aaon white
9.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.23:1failfailfail
  • AA: use #3e69f4 as the text (4.53:1)
  • AAA: use #7392f7 as the text (7.18:1)
  • AA: or shift the background to #b5b5b5 (4.59:1)
  • AAA: or shift the background to #e0e0e0 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b34bc 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

#0b34bc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b34bc
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 #0b34bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b34bc-9ca1c4-df774e-221f2d-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