Color

#212503

#212503
hex#212503
rgbrgb(33, 37, 3)
hslhsl(67, 85%, 8%)
oklchoklch(0.252 0.053 115.9)
Closest name: Lindworm Green (#172808)Relative luminance 0.0165

Colors that go with #212503

Blue Violet, Charcoal and Royal Blue 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.

Real palettes that use #212503

Tints & shades

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

Harmonies

Complementary

Open in tool →

#070326

#261803 · #102603

#032226 · #260322

Split-complementary

Open in tool →

#031026 · #180326

#032618 · #070326 · #260310

Contrast

#212503 as textRatioAAAA largeAAAFix
Aaon white
15.78:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #6e7b0a as the text (4.5:1)
  • AAA: use #8fa00d as the text (7.2:1)
  • AA: or shift the background to #8a8a8a (4.57:1)
  • AAA: or shift the background to #adadad (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #212503 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

#212503 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #212503
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 #212503 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/212503-b8bea2-4e83df-262d1f-f1eee9?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