Color

#42166f

#42166f
hex#42166f
rgbrgb(66, 22, 111)
hslhsl(270, 67%, 26%)
oklchoklch(0.324 0.142 301)
Closest name: Explorer of the Galaxies (#3a1f76)Relative luminance 0.0288

Tints & shades

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

Harmonies

Complementary

Open in tool →

#426f16

#16166f · #6f166f

#6f4216 · #166f42

Split-complementary

Open in tool →

#6f6f16 · #166f16

#6f1616 · #426f16 · #166f6f

Contrast

#42166f as textRatioAAAA largeAAAFix
Aaon white
13.33:1passpasspassPasses AAA — no fix needed.
Aaon black
1.58:1failfailfail
  • AA: use #9955dd as the text (4.7:1)
  • AAA: use #b37fe6 as the text (7.1:1)
  • AA: or shift the background to #969696 (4.51:1)
  • AAA: or shift the background to #bdbdbd (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 #42166f 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

#42166f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42166f
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 #42166f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42166f-b59cc4-c9cb62-2c1f2d-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