Color

#003d3d

#003d3d
hex#003d3d
rgbrgb(0, 61, 61)
hslhsl(180, 100%, 12%)
oklchoklch(0.326 0.056 194.8)
Closest name: Rich Black (#004040)Relative luminance 0.0367

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3d0000

#003d1f · #001f3d

#3d003d · #3d3d00

Split-complementary

Open in tool →

#3d001f · #3d1f00

#1f003d · #3d0000 · #1f3d00

Contrast

#003d3d as textRatioAAAA largeAAAFix
Aaon white
12.1:1passpasspassPasses AAA — no fix needed.
Aaon black
1.73:1failfailfail
  • AA: use #008585 as the text (4.69:1)
  • AAA: use #00a8a8 as the text (7.17:1)
  • AA: or shift the background to #9e9e9e (4.52:1)
  • AAA: or shift the background to #c7c7c7 (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 #003d3d as the background.

Brands using this color

Fonts for this mood

#003d3d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #003d3d
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 #003d3d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/003d3d-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