Color

#42002f

#42002f
hex#42002f
rgbrgb(66, 0, 47)
hslhsl(317, 100%, 13%)
oklchoklch(0.253 0.108 343.8)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0136

Tints & shades

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

Harmonies

Complementary

Open in tool →

#004213

#340042 · #42000e

#304200 · #003042

Split-complementary

Open in tool →

#0e4200 · #004234

#423400 · #004213 · #000e42

Contrast

#42002f as textRatioAAAA largeAAAFix
Aaon white
16.5:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #e000a1 as the text (4.68:1)
  • AAA: use #ff47cb as the text (7.02:1)
  • AA: or shift the background to #878787 (4.59:1)
  • AAA: or shift the background to #ababab (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42002f 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

#42002f reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42002f
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 #42002f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42002f-c19fb3-77cb62-2d1f23-efe9f1?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