Color

#003d38

#003d38
hex#003d38
rgbrgb(0, 61, 56)
hslhsl(175, 100%, 12%)
oklchoklch(0.324 0.057 185.8)
Closest name: Rich Black (#004040)Relative luminance 0.0362

Colors that go with #003d38

Crimson, Sea Green and Sienna lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3d0005

#003d19 · #00243d

#38003d · #3d3800

Split-complementary

Open in tool →

#3d0024 · #3d1a00

#1a003d · #3d0005 · #243d00

Contrast

#003d38 as textRatioAAAA largeAAAFix
Aaon white
12.18:1passpasspassPasses AAA — no fix needed.
Aaon black
1.72:1failfailfail
  • AA: use #00857a as the text (4.64:1)
  • AAA: use #00a89a as the text (7.07:1)
  • AA: or shift the background to #9e9e9e (4.54:1)
  • AAA: or shift the background to #c7c7c7 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #003d38 as the background.

Brands using this color

Fonts for this mood

#003d38 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #003d38
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #003d38 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/003d38-a2bdbe-d4599f-1f282d-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