Color

#004242

#004242
hex#004242
rgbrgb(0, 66, 66)
hslhsl(180, 100%, 13%)
oklchoklch(0.343 0.059 194.8)
Closest name: Rich Black (#004040)Relative luminance 0.0429

Tints & shades

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

Harmonies

Complementary

Open in tool →

#420000

#004221 · #002142

#420042 · #424200

Split-complementary

Open in tool →

#420021 · #422100

#210042 · #420000 · #214200

Contrast

#004242 as textRatioAAAA largeAAAFix
Aaon white
11.3:1passpasspassPasses AAA — no fix needed.
Aaon black
1.86:1failfailfail
  • AA: use #008585 as the text (4.69:1)
  • AAA: use #00a8a8 as the text (7.17:1)
  • AA: or shift the background to #a6a6a6 (4.64:1)
  • AAA: or shift the background to #cccccc (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #004242 as the background.

Brands using this color

Fonts for this mood

#004242 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #004242
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 #004242 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/004242-a2bbbe-d45994-1f272d-e9f1ed?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