Color

#4247ae

#4247ae
hex#4247ae
rgbrgb(66, 71, 174)
hslhsl(237, 45%, 47%)
oklchoklch(0.455 0.161 275.8)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0872

Colors that go with #4247ae

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 →

#aea842

#427dae · #7242ae

#ae4247 · #47ae42

Split-complementary

Open in tool →

#ae7242 · #7dae42

#ae427d · #aea842 · #42ae72

Contrast

#4247ae as textRatioAAAA largeAAAFix
Aaon white
7.65:1passpasspassPasses AAA — no fix needed.
Aaon black
2.74:1failfailfail
  • AA: use #676cc5 as the text (4.53:1)
  • AAA: use #8c90d4 as the text (7.06:1)
  • AA: or shift the background to #c7c7c7 (4.53:1)
  • AAA: or shift the background to #f5f5f5 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4247ae 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

#4247ae reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4247ae
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 #4247ae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4247ae-9f9cc4-df924e-251f2d-e9edf1?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