Color

#42006b

#42006b
hex#42006b
rgbrgb(66, 0, 107)
hslhsl(277, 100%, 21%)
oklchoklch(0.303 0.157 305.2)
Closest name: Clairvoyant (#480656)Relative luminance 0.0222

Tints & shades

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

Harmonies

Complementary

Open in tool →

#296b00

#0c006b · #6b005f

#6b4200 · #006b42

Split-complementary

Open in tool →

#5f6b00 · #006b0c

#6b0c00 · #296b00 · #005f6b

Contrast

#42006b as textRatioAAAA largeAAAFix
Aaon white
14.54:1passpasspassPasses AAA — no fix needed.
Aaon black
1.44:1failfailfail
  • AA: use #ad29ff as the text (4.54:1)
  • AAA: use #c870ff as the text (7.22:1)
  • AA: or shift the background to #919191 (4.61:1)
  • AAA: or shift the background to #b5b5b5 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42006b 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

#42006b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42006b
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 #42006b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42006b-b99cc4-bdcb62-2d1f2c-eae9f1?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