Color

#d23737

#d23737
hex#d23737
rgbrgb(210, 55, 55)
hslhsl(0, 63%, 52%)
oklchoklch(0.574 0.192 25.7)
Closest name: Bento Box (#cc363c)Relative luminance 0.1671

Tints & shades

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

Harmonies

Complementary

Open in tool →

#37d2d2

#d23785 · #d28537

#37d237 · #3737d2

Split-complementary

Open in tool →

#37d285 · #3785d2

#85d237 · #37d2d2 · #8537d2

Contrast

#d23737 as textRatioAAAA largeAAAFix
Aaon white
4.84:1passpassfail
  • AAA: use #a62626 as the text (7.18:1)
Aaon black
4.34:1failpassfail
  • AA: use #d44040 as the text (4.61:1)
  • AAA: use #e07676 as the text (7.02:1)
  • AA: or shift the background to #f7f7f7 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #d23737 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#d23737 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d23737
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 #d23737 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d23737-c4a19c-62cb98-2d251f-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