Color

#40464f

#40464f
hex#40464f
rgbrgb(64, 70, 79)
hslhsl(216, 10%, 28%)
oklchoklch(0.392 0.017 258.4)
Closest name: Arsenic (#3b444b)Relative luminance 0.0603

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4f4940

#404d4f · #42404f

#4f4046 · #464f40

Split-complementary

Open in tool →

#4f4240 · #4d4f40

#4f404d · #4f4940 · #404f42

Contrast

#40464f as textRatioAAAA largeAAAFix
Aaon white
9.52:1passpasspassPasses AAA — no fix needed.
Aaon black
2.21:1failfailfail
  • AA: use #6c7584 as the text (4.52:1)
  • AAA: use #8f97a3 as the text (7.12:1)
  • AA: or shift the background to #b3b3b3 (4.54:1)
  • AAA: or shift the background to #dedede (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40464f 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

#40464f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40464f
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 #40464f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40464f-9ca7c4-df5f4e-201f2d-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