Color

#de1735

#de1735
hex#de1735
rgbrgb(222, 23, 53)
hslhsl(351, 81%, 48%)
oklchoklch(0.575 0.223 22.4)
Closest name: crimson (#dc143c)Relative luminance 0.164

Colors that go with #de1735

Charcoal, Royal Blue and Sea Green 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 →

#17dec0

#de1798 · #de5d17

#35de17 · #1735de

Split-complementary

Open in tool →

#17de5d · #1798de

#98de17 · #17dec0 · #5d17de

Contrast

#de1735 as textRatioAAAA largeAAAFix
Aaon white
4.91:1passpassfail
  • AAA: use #af122a as the text (7.14:1)
Aaon black
4.28:1failpassfail
  • AA: use #e71837 as the text (4.58:1)
  • AAA: use #ef6b7f as the text (7.08:1)
  • AA: or shift the background to #f5f5f5 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #de1735 as the background.

Brands using this color

Fonts for this mood

#de1735 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #de1735
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 #de1735 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/de1735-c49c9e-62cb89-2d231f-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