Color

#545b64

#545b64
hex#545b64
rgbrgb(84, 91, 100)
hslhsl(214, 9%, 36%)
oklchoklch(0.468 0.017 254.7)
Closest name: Blackwater (#545663)Relative luminance 0.1029

Tints & shades

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

Harmonies

Complementary

Open in tool →

#645d54

#546364 · #555464

#64545b · #5b6454

Split-complementary

Open in tool →

#645554 · #636454

#645463 · #645d54 · #546455

Contrast

#545b64 as textRatioAAAA largeAAAFix
Aaon white
6.87:1passpassfail
  • AAA: use #515861 as the text (7.2:1)
Aaon black
3.06:1failpassfail
  • AA: use #6d7683 as the text (4.57:1)
  • AAA: use #9098a2 as the text (7.2:1)
  • AA: or shift the background to #d4d4d4 (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #545b64 as the background.

Brands using this color

Fonts for this mood

#545b64 reads as muted, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #545b64
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #545b64 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/545b64-9ca9c4-df5a4e-1f1f2d-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