Color

#03102a

#03102a
hex#03102a
rgbrgb(3, 16, 42)
hslhsl(220, 87%, 9%)
oklchoklch(0.179 0.057 260.2)
Closest name: Mysterious Depths (#060929)Relative luminance 0.0056

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b1e03

#03242b · #0a032b

#2b0310 · #102b03

Split-complementary

Open in tool →

#2b0a03 · #242b03

#2b0324 · #2b1e03 · #032b0a

Contrast

#03102a as textRatioAAAA largeAAAFix
Aaon white
18.89:1passpasspassPasses AAA — no fix needed.
Aaon black
1.11:1failfailfail
  • AA: use #2d6ef0 as the text (4.6:1)
  • AAA: use #6696f4 as the text (7.23:1)
  • AA: or shift the background to #7d7d7d (4.59:1)
  • AAA: or shift the background to #9e9e9e (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #03102a as the background.

Brands using this color

Fonts for this mood

#03102a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #03102a
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 #03102a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03102a-9ca5c4-df694e-211f2d-e9f0f1?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