Color

#d31d35

#d31d35
hex#d31d35
rgbrgb(211, 29, 53)
hslhsl(352, 76%, 47%)
oklchoklch(0.557 0.211 22.2)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1498

Colors that go with #d31d35

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 →

#1dd3bb

#d31d90 · #d3601d

#35d31d · #1d35d3

Split-complementary

Open in tool →

#1dd360 · #1d90d3

#90d31d · #1dd3bb · #601dd3

Contrast

#d31d35 as textRatioAAAA largeAAAFix
Aaon white
5.25:1passpassfail
  • AAA: use #af182c as the text (7.02:1)
Aaon black
4:1failpassfail
  • AA: use #e1233c as the text (4.51:1)
  • AAA: use #eb6f80 as the text (7.12:1)
  • AA: or shift the background to #f0f0f0 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #d31d35 as the background.

Brands using this color

Fonts for this mood

#d31d35 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d31d35
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 #d31d35 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d31d35-c49c9d-62cb8a-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