Color

#d33136

#d33136
hex#d33136
rgbrgb(211, 49, 54)
hslhsl(358, 65%, 51%)
oklchoklch(0.57 0.198 24.8)
Closest name: Bento Box (#cc363c)Relative luminance 0.1631

Colors that go with #d33136

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 →

#31d3ce

#d33187 · #d37d31

#36d331 · #3136d3

Split-complementary

Open in tool →

#31d37d · #3187d3

#87d331 · #31d3ce · #7d31d3

Contrast

#d33136 as textRatioAAAA largeAAAFix
Aaon white
4.93:1passpassfail
  • AAA: use #a82428 as the text (7.12:1)
Aaon black
4.26:1failpassfail
  • AA: use #d63d43 as the text (4.61:1)
  • AAA: use #e27478 as the text (7:1)
  • 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 #d33136 as the background.

Brands using this color

Fonts for this mood

#d33136 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d33136
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 #d33136 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d33136-c49f9c-62cb95-2d251f-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