Color

#de1728

#de1728
hex#de1728
rgbrgb(222, 23, 40)
hslhsl(355, 81%, 48%)
oklchoklch(0.574 0.224 25.4)
Closest name: Angry Tomato (#d82029)Relative luminance 0.163

Colors that go with #de1728

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 →

#17decd

#de178b · #de6a17

#28de17 · #1728de

Split-complementary

Open in tool →

#17de6a · #178bde

#8bde17 · #17decd · #6a17de

Contrast

#de1728 as textRatioAAAA largeAAAFix
Aaon white
4.93:1passpassfail
  • AAA: use #af121f as the text (7.17:1)
Aaon black
4.26:1failpassfail
  • AA: use #e71829 as the text (4.56:1)
  • AAA: use #ef6b76 as the text (7.03:1)
  • AA: or shift the background to #f5f5f5 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #de1728 as the background.

Brands using this color

Fonts for this mood

#de1728 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #de1728
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 #de1728 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/de1728-c49e9c-62cb8f-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