Color

#415171

#415171
hex#415171
rgbrgb(65, 81, 113)
hslhsl(220, 27%, 35%)
oklchoklch(0.435 0.057 263.7)
Closest name: Deep Indigo (#4c567a)Relative luminance 0.082

Colors that go with #415171

Steel Blue, Blue and Cadet 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.

Real palettes that use #415171

Tints & shades

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

Harmonies

Complementary

Open in tool →

#716141

#416971 · #494171

#714151 · #517141

Split-complementary

Open in tool →

#714941 · #697141

#714169 · #716141 · #417149

Contrast

#415171 as textRatioAAAA largeAAAFix
Aaon white
7.95:1passpasspassPasses AAA — no fix needed.
Aaon black
2.64:1failfailfail
  • AA: use #6077a4 as the text (4.67:1)
  • AAA: use #8798ba as the text (7.23:1)
  • AA: or shift the background to #c4c4c4 (4.56:1)
  • AAA: or shift the background to #f2f2f2 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #415171 as the background.

Brands using this color

mcpConnect your agent — build around #415171
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 #415171 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/415171-9ca5c4-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