Color

#d30d28

#d30d28
hex#d30d28
rgbrgb(211, 13, 40)
hslhsl(352, 88%, 44%)
oklchoklch(0.55 0.218 24.3)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1429

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0dd3b9

#d30d8b · #d3560d

#28d30d · #0d28d3

Split-complementary

Open in tool →

#0dd356 · #0d8bd3

#8bd30d · #0dd3b9 · #560dd3

Contrast

#d30d28 as textRatioAAAA largeAAAFix
Aaon white
5.44:1passpassfail
  • AAA: use #b10b21 as the text (7.14:1)
Aaon black
3.86:1failpassfail
  • AA: use #eb0f2c as the text (4.64:1)
  • AAA: use #f56679 as the text (7.06:1)
  • AA: or shift the background to #ebebeb (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #d30d28 as the background.

Brands using this color

Fonts for this mood

#d30d28 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d30d28
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 #d30d28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d30d28-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