Color

#545a7d

#545a7d
hex#545a7d
rgbrgb(84, 90, 125)
hslhsl(231, 20%, 41%)
oklchoklch(0.477 0.057 276.5)
Closest name: Deep Indigo (#4c567a)Relative luminance 0.1068

Colors that go with #545a7d

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.

Real palettes that use #545a7d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7d7754

#546f7d · #62547d

#7d545a · #5a7d54

Split-complementary

Open in tool →

#7d6254 · #6f7d54

#7d546f · #7d7754 · #547d62

Contrast

#545a7d as textRatioAAAA largeAAAFix
Aaon white
6.7:1passpassfail
  • AAA: use #505677 as the text (7.15:1)
Aaon black
3.14:1failpassfail
  • AA: use #6c739d as the text (4.58:1)
  • AAA: use #9196b6 as the text (7.24:1)
  • AA: or shift the background to #d4d4d4 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #545a7d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #545a7d
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 #545a7d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/545a7d-9c9ec4-df834e-231f2d-e9eef1?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