Color

#0f1bf0

#0f1bf0
hex#0f1bf0
rgbrgb(15, 27, 240)
hslhsl(237, 88%, 50%)
oklchoklch(0.446 0.289 265.3)
Closest name: Blue Overdose (#0020ef)Relative luminance 0.0718

Colors that go with #0f1bf0

Charcoal, Crimson and Cobalt 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 →

#f0e40f

#0f8bf0 · #740ff0

#f00f1b · #1bf00f

Split-complementary

Open in tool →

#f0740f · #8bf00f

#f00f8b · #f0e40f · #0ff074

Contrast

#0f1bf0 as textRatioAAAA largeAAAFix
Aaon white
8.62:1passpasspassPasses AAA — no fix needed.
Aaon black
2.44:1failfailfail
  • AA: use #5c64f5 as the text (4.6:1)
  • AAA: use #878df7 as the text (7.18:1)
  • AA: or shift the background to #bdbdbd (4.59:1)
  • AAA: or shift the background to #e8e8e8 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f1bf0 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

#0f1bf0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f1bf0
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 #0f1bf0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f1bf0-9f9cc4-df924e-251f2d-e9edf1?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