Color

#0f29bd

#0f29bd
hex#0f29bd
rgbrgb(15, 41, 189)
hslhsl(231, 85%, 40%)
oklchoklch(0.397 0.225 265.6)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0536

Colors that go with #0f29bd

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 →

#bda30f

#0f80bd · #4c0fbd

#bd0f29 · #29bd0f

Split-complementary

Open in tool →

#bd4c0f · #80bd0f

#bd0f80 · #bda30f · #0fbd4c

Contrast

#0f29bd as textRatioAAAA largeAAAFix
Aaon white
10.13:1passpasspassPasses AAA — no fix needed.
Aaon black
2.07:1failfailfail
  • AA: use #5069f1 as the text (4.63:1)
  • AAA: use #8091f5 as the text (7.29:1)
  • AA: or shift the background to #adadad (4.52:1)
  • AAA: or shift the background to #d9d9d9 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f29bd 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

#0f29bd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f29bd
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 #0f29bd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f29bd-9c9ec4-df834e-231f2d-e9eef1?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