Color

#45516e

#45516e
hex#45516e
rgbrgb(69, 81, 110)
hslhsl(222, 23%, 35%)
oklchoklch(0.437 0.051 266.9)
Closest name: Deep Indigo (#4c567a)Relative luminance 0.0828

Colors that go with #45516e

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 #45516e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6e6145

#45666e · #4d456e

#6e4551 · #516e45

Split-complementary

Open in tool →

#6e4d45 · #666e45

#6e4566 · #6e6145 · #456e4d

Contrast

#45516e as textRatioAAAA largeAAAFix
Aaon white
7.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.66:1failfailfail
  • AA: use #62749d as the text (4.5:1)
  • AAA: use #8895b4 as the text (7:1)
  • AA: or shift the background to #c4c4c4 (4.53:1)
  • AAA: or shift the background to #f2f2f2 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #45516e as the background.

Brands using this color

mcpConnect your agent — build around #45516e
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 #45516e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45516e-9ca3c4-df6e4e-211f2d-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