Color

#d5331a

#d5331a
hex#d5331a
rgbrgb(213, 51, 26)
hslhsl(8, 78%, 47%)
oklchoklch(0.573 0.202 31.6)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1659

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1abcd5

#d51a5f · #d5911a

#1ad533 · #331ad5

Split-complementary

Open in tool →

#1ad591 · #1a5fd5

#5fd51a · #1abcd5 · #911ad5

Contrast

#d5331a as textRatioAAAA largeAAAFix
Aaon white
4.86:1passpassfail
  • AAA: use #a82815 as the text (7.05:1)
Aaon black
4.32:1failpassfail
  • AA: use #de351b as the text (4.63:1)
  • AAA: use #eb7360 as the text (7.15:1)
  • AA: or shift the background to #f7f7f7 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #d5331a as the background.

Brands using this color

Fonts for this mood

#d5331a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d5331a
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 #d5331a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d5331a-c4a69c-62cba6-2d271f-f1e9ec?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