Color

#03212b

#03212b
hex#03212b
rgbrgb(3, 33, 43)
hslhsl(195, 87%, 9%)
oklchoklch(0.231 0.04 224)
Closest name: Midnight Dreams (#002233)Relative luminance 0.0128

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b0d03

#032b21 · #030d2b

#2b0321 · #212b03

Split-complementary

Open in tool →

#2b030d · #2b2103

#21032b · #2b0d03 · #0d2b03

Contrast

#03212b as textRatioAAAA largeAAAFix
Aaon white
16.72:1passpasspassPasses AAA — no fix needed.
Aaon black
1.26:1failfailfail
  • AA: use #0c80a7 as the text (4.66:1)
  • AAA: use #0fa1d2 as the text (7.05:1)
  • AA: or shift the background to #858585 (4.53:1)
  • AAA: or shift the background to #a8a8a8 (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 #03212b 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

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

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

tool url/palettes/new/03212b-9cb5c4-df4e70-1f242d-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