Color

#ff051e

#ff051e
hex#ff051e
rgbrgb(255, 5, 30)
hslhsl(354, 100%, 51%)
oklchoklch(0.63 0.255 27.1)
Closest name: red (#ff0000)Relative luminance 0.2146

Colors that go with #ff051e

Charcoal, Dodger 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 →

#05ffe6

#ff059b · #ff6905

#1eff05 · #051eff

Split-complementary

Open in tool →

#05ff69 · #059bff

#9bff05 · #05ffe6 · #6905ff

Contrast

#ff051e as textRatioAAAA largeAAAFix
Aaon white
3.97:1failpassfail
  • AA: use #eb0017 as the text (4.62:1)
  • AAA: use #b30012 as the text (7.18:1)
  • AA: or shift the background to #171717 (4.52:1)
Aaon black
5.29:1passpassfail
  • AAA: use #ff6171 as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff051e as the background.

Brands using this color

Fonts for this mood

#ff051e reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff051e
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 #ff051e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff051e-c49d9c-62cb8e-2d241f-f1e9ee?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