Color

#424bc2

#424bc2
hex#424bc2
rgbrgb(66, 75, 194)
hslhsl(236, 51%, 51%)
oklchoklch(0.479 0.183 273.9)
Closest name: Blurple (#5539cc)Relative luminance 0.1009

Colors that go with #424bc2

Charcoal, Sea Green and Steel 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 →

#c2b942

#428bc2 · #7a42c2

#c2424b · #4bc242

Split-complementary

Open in tool →

#c27a42 · #8bc242

#c2428b · #c2b942 · #42c27a

Contrast

#424bc2 as textRatioAAAA largeAAAFix
Aaon white
6.96:1passpassfail
  • AAA: use #3e47c1 as the text (7.3:1)
Aaon black
3.02:1failpassfail
  • AA: use #656ccd as the text (4.58:1)
  • AAA: use #8b91da as the text (7.16:1)
  • AA: or shift the background to #d1d1d1 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #424bc2 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

#424bc2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #424bc2
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 #424bc2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/424bc2-9e9cc4-df8f4e-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