Color

#4200eb

#4200eb
hex#4200eb
rgbrgb(66, 0, 235)
hslhsl(257, 100%, 46%)
oklchoklch(0.451 0.281 276.2)
Closest name: Overdue Blue (#4400ff)Relative luminance 0.0716

Colors that go with #4200eb

Charcoal, Cobalt Blue and Cornflower Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a8eb00

#0033eb · #b800eb

#eb4200 · #00eb42

Split-complementary

Open in tool →

#ebb800 · #33eb00

#eb0033 · #a8eb00 · #00ebb8

Contrast

#4200eb as textRatioAAAA largeAAAFix
Aaon white
8.64:1passpasspassPasses AAA — no fix needed.
Aaon black
2.43:1failfailfail
  • AA: use #8352ff as the text (4.62:1)
  • AAA: use #a480ff as the text (7.11:1)
  • AA: or shift the background to #bdbdbd (4.6:1)
  • AAA: or shift the background to #e8e8e8 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4200eb 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

#4200eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4200eb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #4200eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4200eb-ac9cc4-dfc24e-291f2d-e9ebf1?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