Color

#4075dd

#4075dd
hex#4075dd
rgbrgb(64, 117, 221)
hslhsl(220, 70%, 56%)
oklchoklch(0.581 0.169 262.2)
Closest name: Royal Blue (#4169e1)Relative luminance 0.1903

Colors that go with #4075dd

Charcoal, Copper 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 →

#dda940

#40c3dd · #5a40dd

#dd4075 · #75dd40

Split-complementary

Open in tool →

#dd5a40 · #c3dd40

#dd40c3 · #dda940 · #40dd5a

Contrast

#4075dd as textRatioAAAA largeAAAFix
Aaon white
4.37:1failpassfail
  • AA: use #3c71dd as the text (4.57:1)
  • AAA: use #2052b6 as the text (7.13:1)
  • AA: or shift the background to #0a0a0a (4.53:1)
Aaon black
4.81:1passpassfail
  • AAA: use #6c94e5 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4075dd 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

#4075dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4075dd
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 #4075dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4075dd-9ca5c4-df694e-211f2d-e9f0f1?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