Color

#4145b4

#4145b4
hex#4145b4
rgbrgb(65, 69, 180)
hslhsl(238, 47%, 48%)
oklchoklch(0.456 0.172 275.6)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0868

Colors that go with #4145b4

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 →

#b4b041

#417eb4 · #7741b4

#b44145 · #45b441

Split-complementary

Open in tool →

#b47741 · #7eb441

#b4417e · #b4b041 · #41b477

Contrast

#4145b4 as textRatioAAAA largeAAAFix
Aaon white
7.68:1passpasspassPasses AAA — no fix needed.
Aaon black
2.74:1failfailfail
  • AA: use #696cc9 as the text (4.59:1)
  • AAA: use #8f91d6 as the text (7.19:1)
  • AA: or shift the background to #c7c7c7 (4.54:1)
  • AAA: or shift the background to #f5f5f5 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4145b4 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

#4145b4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4145b4
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 #4145b4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4145b4-9f9cc4-df944e-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