Color

#2f42e9

#2f42e9
hex#2f42e9
rgbrgb(47, 66, 233)
hslhsl(234, 81%, 55%)
oklchoklch(0.491 0.247 268.8)
Closest name: C64 Blue (#003aff)Relative luminance 0.1038

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e9d72f

#2f9fe9 · #7a2fe9

#e92f42 · #42e92f

Split-complementary

Open in tool →

#e97a2f · #9fe92f

#e92f9f · #e9d72f · #2fe97a

Contrast

#2f42e9 as textRatioAAAA largeAAAFix
Aaon white
6.83:1passpassfail
  • AAA: use #2b3ee9 as the text (7.07:1)
Aaon black
3.08:1failpassfail
  • AA: use #5968ee as the text (4.64:1)
  • AAA: use #828ef2 as the text (7.1:1)
  • AA: or shift the background to #d4d4d4 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f42e9 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

#2f42e9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f42e9
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 #2f42e9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f42e9-9d9cc4-df8a4e-241f2d-e9eef1?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