Color

#421a4d

#421a4d
hex#421a4d
rgbrgb(66, 26, 77)
hslhsl(287, 50%, 20%)
oklchoklch(0.302 0.098 318.4)
Closest name: Velvet Cosmos (#441144)Relative luminance 0.0243

Tints & shades

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

Harmonies

Complementary

Open in tool →

#254d1a

#281a4d · #4d1a3e

#4d411a · #1a4d41

Split-complementary

Open in tool →

#3e4d1a · #1a4d28

#4d281a · #254d1a · #1a3e4d

Contrast

#421a4d as textRatioAAAA largeAAAFix
Aaon white
14.13:1passpasspassPasses AAA — no fix needed.
Aaon black
1.49:1failfailfail
  • AA: use #ab4fc4 as the text (4.65:1)
  • AAA: use #c17dd4 as the text (7.15:1)
  • AA: or shift the background to #949494 (4.66:1)
  • AAA: or shift the background to #b8b8b8 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #421a4d 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

#421a4d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #421a4d
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 #421a4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/421a4d-bd9fc1-abcb62-2d1f2a-ece9f1?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