Color

#4150d2

#4150d2
hex#4150d2
rgbrgb(65, 80, 210)
hslhsl(234, 62%, 54%)
oklchoklch(0.501 0.199 272)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1151

Colors that go with #4150d2

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 →

#d2c441

#4198d2 · #7b41d2

#d24150 · #50d241

Split-complementary

Open in tool →

#d27b41 · #98d241

#d24198 · #d2c441 · #41d27b

Contrast

#4150d2 as textRatioAAAA largeAAAFix
Aaon white
6.36:1passpassfail
  • AAA: use #3544d0 as the text (7.27:1)
Aaon black
3.3:1failpassfail
  • AA: use #5e6ad9 as the text (4.54:1)
  • AAA: use #8790e3 as the text (7.13:1)
  • AA: or shift the background to #d9d9d9 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4150d2 as the background.

Brands using this color

Fonts for this mood

#4150d2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4150d2
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 #4150d2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4150d2-9d9cc4-df8a4e-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