CSS color

crimson

#dc143c

hex#dc143c

rgbrgb(220, 20, 60)

hslhsl(348, 83%, 47%)

oklchoklch(0.571 0.222 20.1)

Relative luminance 0.1604

Warm Vivid Playful Bold

Open in palette tool Check contrast

Crimson on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the curated palettes it appears in and any public brand that adopts it.

Tints & shades

Tints — toward white

ea1f48 ec365b ef4e6e f16581 f38198 f598ab f8b0be fac7d1 fcdee4 fef6f7

Shades — toward black

c91337 b11031 9f0f2c 8c0d26 790b21 62091b 4f0716 3d0611 25030a 130205

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

Harmonies

Complementary

Open in tool →

dc143c 14dbb4

#14dbb4

Analogous

Open in tool →

dc143c db14a0 db5014

#db14a0 · #db5014

Triadic

Open in tool →

dc143c 3cdb14 143cdb

#3cdb14 · #143cdb

Split-complementary

Open in tool →

dc143c 14db50 14a0db

#14db50 · #14a0db

Tetradic

Open in tool →

dc143c a0db14 14dbb4 5014db

#a0db14 · #14dbb4 · #5014db

Contrast

crimson as text	Ratio	AA	AA large	AAA	Fix
Aaon white	4.99:1	pass	pass	fail	AAA: use #b11031 as the text (7.03:1)
Aaon black	4.21:1	fail	pass	fail	AA: use #e5153f as the text (4.51:1) AAA: use #f16a85 as the text (7.14:1) AA: or shift the background to #f5f5f5 (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 crimson as the background.

Brands using this color

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

Palettes built around it

e11d48 111111 facc15 ffffff

Tabloid

Open in tool →

Red, black and yellow on white is the loudest three-color system in print — use it when headlines are the product.

Editorial Bold Vivid

Fonts for this mood

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

Warm fonts →Playful fonts →Bold fonts →

mcpConnect your agent — build around crimson

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 #dc143c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/dc143c-c49c9f-62cb83-2d231f-f1e9ef?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