Color

#405154

#405154
hex#405154
rgbrgb(64, 81, 84)
hslhsl(189, 14%, 29%)
oklchoklch(0.422 0.022 209.5)
Closest name: All Nighter (#455454)Relative luminance 0.0761

Tints & shades

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

Harmonies

Complementary

Open in tool →

#544340

#40544d · #404754

#544051 · #515440

Split-complementary

Open in tool →

#544047 · #544d40

#4d4054 · #544340 · #475440

Contrast

#405154 as textRatioAAAA largeAAAFix
Aaon white
8.32:1passpasspassPasses AAA — no fix needed.
Aaon black
2.52:1failfailfail
  • AA: use #607b80 as the text (4.64:1)
  • AAA: use #7f9a9f as the text (7.03:1)
  • AA: or shift the background to #bfbfbf (4.53:1)
  • AAA: or shift the background to #ededed (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #405154 as the background.

Brands using this color

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

Fonts for this mood

#405154 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #405154
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 #405154 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/405154-a2b7be-df4e7e-1f252d-e9f1ee?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