Color

#040506

#040506
hex#040506
rgbrgb(4, 5, 6)
hslhsl(210, 20%, 2%)
oklchoklch(0.114 0.004 245)
Closest name: Black Metal (#060606)Relative luminance 0.0015

Tints & shades

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

Harmonies

Complementary

Open in tool →

#060504

#040606 · #040406

#060405 · #050604

Split-complementary

Open in tool →

#060404 · #060604

#060406 · #060504 · #040604

Contrast

#040506 as textRatioAAAA largeAAAFix
Aaon white
20.4:1passpasspassPasses AAA — no fix needed.
Aaon black
1.03:1failfailfail
  • AA: use #607890 as the text (4.59:1)
  • AAA: use #8599ad as the text (7.16:1)
  • AA: or shift the background to #787878 (4.62:1)
  • AAA: or shift the background to #999999 (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 #040506 as the background.

Brands using this color

Fonts for this mood

#040506 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #040506
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 #040506 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040506-9cabc4-df514e-1f202d-e9f1f1?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