Color

#4664dd

#4664dd
hex#4664dd
rgbrgb(70, 100, 221)
hslhsl(228, 69%, 57%)
oklchoklch(0.55 0.188 268.9)
Closest name: Royal Blue (#4169e1)Relative luminance 0.1564

Colors that go with #4664dd

Charcoal, Sea Green and Amber 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 →

#ddbf46

#46b0dd · #7346dd

#dd4664 · #64dd46

Split-complementary

Open in tool →

#dd7346 · #b0dd46

#dd46b0 · #ddbf46 · #46dd73

Contrast

#4664dd as textRatioAAAA largeAAAFix
Aaon white
5.09:1passpassfail
  • AAA: use #2749d3 as the text (7.05:1)
Aaon black
4.13:1failpassfail
  • AA: use #536fdf as the text (4.71:1)
  • AAA: use #7e93e7 as the text (7.21:1)
  • AA: or shift the background to #f2f2f2 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4664dd 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

#4664dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4664dd
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 #4664dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4664dd-9c9fc4-df7c4e-231f2d-e9eff1?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