Color

#03212a

#03212a
hex#03212a
rgbrgb(3, 33, 42)
hslhsl(194, 87%, 9%)
oklchoklch(0.231 0.039 221.5)
Closest name: Midnight Dreams (#002233)Relative luminance 0.0127

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b0c03

#032b20 · #030e2b

#2b0322 · #222b03

Split-complementary

Open in tool →

#2b030e · #2b2003

#20032b · #2b0c03 · #0e2b03

Contrast

#03212a as textRatioAAAA largeAAAFix
Aaon white
16.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #0b7fa2 as the text (4.57:1)
  • AAA: use #0fa4d2 as the text (7.26:1)
  • AA: or shift the background to #858585 (4.54:1)
  • AAA: or shift the background to #a8a8a8 (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 #03212a 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

#03212a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #03212a
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 #03212a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03212a-9cb6c4-df4e72-1f242d-e9f1ef?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