Color

#f50f13

#f50f13
hex#f50f13
rgbrgb(245, 15, 19)
hslhsl(359, 92%, 51%)
oklchoklch(0.613 0.246 28.5)
Closest name: Assassin’s Red (#f60206)Relative luminance 0.198

Colors that go with #f50f13

Charcoal, Royal Blue 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 →

#0ff5f1

#f50f86 · #f57e0f

#13f50f · #0f13f5

Split-complementary

Open in tool →

#0ff57e · #0f86f5

#86f50f · #0ff5f1 · #7e0ff5

Contrast

#f50f13 as textRatioAAAA largeAAAFix
Aaon white
4.23:1failpassfail
  • AA: use #eb0a0e as the text (4.58:1)
  • AAA: use #b0070a as the text (7.29:1)
  • AA: or shift the background to #0f0f0f (4.53:1)
Aaon black
4.96:1passpassfail
  • AAA: use #f9676a as the text (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 #f50f13 as the background.

Brands using this color

Fonts for this mood

#f50f13 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f50f13
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 #f50f13 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f50f13-c4a09c-62cb96-2d251f-f1e9ed?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