Color

#40494f

#40494f
hex#40494f
rgbrgb(64, 73, 79)
hslhsl(204, 10%, 28%)
oklchoklch(0.4 0.015 237)
Closest name: Abyssal (#404c57)Relative luminance 0.0642

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4f4640

#404f4d · #40424f

#4f4049 · #494f40

Split-complementary

Open in tool →

#4f4042 · #4f4d40

#4d404f · #4f4640 · #424f40

Contrast

#40494f as textRatioAAAA largeAAAFix
Aaon white
9.19:1passpasspassPasses AAA — no fix needed.
Aaon black
2.28:1failfailfail
  • AA: use #6a7881 as the text (4.62:1)
  • AAA: use #8c99a1 as the text (7.19:1)
  • AA: or shift the background to #b8b8b8 (4.64:1)
  • AAA: or shift the background to #e3e3e3 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40494f 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

#40494f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40494f
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 #40494f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40494f-9cafc4-df4e5a-1f222d-e9f1f0?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