Color

#d50729

#d50729
hex#d50729
rgbrgb(213, 7, 41)
hslhsl(350, 94%, 43%)
oklchoklch(0.552 0.221 23.9)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1446

Colors that go with #d50729

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 →

#07d5b2

#d50790 · #d54b07

#29d507 · #0729d5

Split-complementary

Open in tool →

#07d54b · #0790d5

#90d507 · #07d5b2 · #4b07d5

Contrast

#d50729 as textRatioAAAA largeAAAFix
Aaon white
5.4:1passpassfail
  • AAA: use #b20622 as the text (7.14:1)
Aaon black
3.89:1failpassfail
  • AA: use #e9072d as the text (4.53:1)
  • AAA: use #fa617a as the text (7.06:1)
  • AA: or shift the background to #ebebeb (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #d50729 as the background.

Brands using this color

Fonts for this mood

#d50729 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d50729
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 #d50729 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d50729-c49c9e-62cb87-2d231f-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