Color

#4148d8

#4148d8
hex#4148d8
rgbrgb(65, 72, 216)
hslhsl(237, 66%, 55%)
oklchoklch(0.493 0.215 273.2)
Closest name: Blurple (#5539cc)Relative luminance 0.1072

Colors that go with #4148d8

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.

Real palettes that use #4148d8

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#d8d041

#4194d8 · #8541d8

#d84148 · #48d841

Split-complementary

Open in tool →

#d88541 · #94d841

#d84194 · #d8d041 · #41d885

Contrast

#4148d8 as textRatioAAAA largeAAAFix
Aaon white
6.68:1passpassfail
  • AAA: use #3840d6 as the text (7.31:1)
Aaon black
3.14:1failpassfail
  • AA: use #6269df as the text (4.61:1)
  • AAA: use #888de7 as the text (7.01:1)
  • AA: or shift the background to #d4d4d4 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4148d8 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

#4148d8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4148d8
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 #4148d8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4148d8-9f9cc4-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