Color

#0f35cc

#0f35cc
hex#0f35cc
rgbrgb(15, 53, 204)
hslhsl(228, 86%, 43%)
oklchoklch(0.431 0.232 264.9)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0701

Colors that go with #0f35cc

Charcoal, Steel Blue and Amber 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 →

#cca60f

#0f93cc · #480fcc

#cc0f35 · #35cc0f

Split-complementary

Open in tool →

#cc480f · #93cc0f

#cc0f93 · #cca60f · #0fcc48

Contrast

#0f35cc as textRatioAAAA largeAAAFix
Aaon white
8.74:1passpasspassPasses AAA — no fix needed.
Aaon black
2.4:1failfailfail
  • AA: use #4668f1 as the text (4.51:1)
  • AAA: use #758ff5 as the text (7:1)
  • AA: or shift the background to #bababa (4.51:1)
  • AAA: or shift the background to #e6e6e6 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f35cc as the background.

Brands using this color

Fonts for this mood

#0f35cc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f35cc
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 #0f35cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f35cc-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