Color

#d30f09

#d30f09
hex#d30f09
rgbrgb(211, 15, 9)
hslhsl(2, 92%, 43%)
oklchoklch(0.548 0.219 29.2)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1421

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#09ccd3

#d30967 · #d37409

#09d30f · #0f09d3

Split-complementary

Open in tool →

#09d374 · #0967d3

#67d309 · #09ccd3 · #7409d3

Contrast

#d30f09 as textRatioAAAA largeAAAFix
Aaon white
5.47:1passpassfail
  • AAA: use #b00d07 as the text (7.22:1)
Aaon black
3.84:1failpassfail
  • AA: use #eb110a as the text (4.62:1)
  • AAA: use #f86762 as the text (7.11:1)
  • AA: or shift the background to #ebebeb (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #d30f09 as the background.

Brands using this color

Fonts for this mood

#d30f09 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d30f09
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #d30f09 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d30f09-c4a29c-62cb9c-2d261f-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