Color

#415cb4

#415cb4
hex#415cb4
rgbrgb(65, 92, 180)
hslhsl(226, 47%, 48%)
oklchoklch(0.501 0.143 268.1)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1207

Colors that go with #415cb4

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 →

#b49941

#4195b4 · #6041b4

#b4415c · #5cb441

Split-complementary

Open in tool →

#b46041 · #95b441

#b44195 · #b49941 · #41b460

Contrast

#415cb4 as textRatioAAAA largeAAAFix
Aaon white
6.15:1passpassfail
  • AAA: use #3b54a5 as the text (7.01:1)
Aaon black
3.41:1failpassfail
  • AA: use #5a73c4 as the text (4.68:1)
  • AAA: use #8093d1 as the text (7.01:1)
  • AA: or shift the background to #dedede (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #415cb4 as the background.

Brands using this color

Fonts for this mood

#415cb4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #415cb4
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 #415cb4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/415cb4-9ca1c4-df774e-221f2d-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