Color

#03216d

#03216d
hex#03216d
rgbrgb(3, 33, 109)
hslhsl(223, 95%, 22%)
oklchoklch(0.29 0.136 263.2)
Closest name: Black Sea Night (#052462)Relative luminance 0.0221

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6d4f03

#03566d · #1a036d

#6d0321 · #216d03

Split-complementary

Open in tool →

#6d1a03 · #566d03

#6d0356 · #6d4f03 · #036d1a

Contrast

#03216d as textRatioAAAA largeAAAFix
Aaon white
14.56:1passpasspassPasses AAA — no fix needed.
Aaon black
1.44:1failfailfail
  • AA: use #336bfa as the text (4.62:1)
  • AAA: use #6a93fb as the text (7.18:1)
  • AA: or shift the background to #8f8f8f (4.5:1)
  • AAA: or shift the background to #b5b5b5 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #03216d 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

#03216d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #03216d
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 #03216d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03216d-9ca3c4-df704e-211f2d-e9eff1?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