Color

#030d2a

#030d2a
hex#030d2a
rgbrgb(3, 13, 42)
hslhsl(225, 87%, 9%)
oklchoklch(0.171 0.062 263.6)
Closest name: Mysterious Depths (#060929)Relative luminance 0.0047

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b2103

#03212b · #0d032b

#2b030d · #0d2b03

Split-complementary

Open in tool →

#2b0d03 · #212b03

#2b0321 · #2b2103 · #032b0d

Contrast

#030d2a as textRatioAAAA largeAAAFix
Aaon white
19.18:1passpasspassPasses AAA — no fix needed.
Aaon black
1.09:1failfailfail
  • AA: use #406df2 as the text (4.69:1)
  • AAA: use #7091f5 as the text (7.06:1)
  • AA: or shift the background to #7d7d7d (4.66:1)
  • AAA: or shift the background to #9e9e9e (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #030d2a as the background.

Brands using this color

Fonts for this mood

#030d2a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #030d2a
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 #030d2a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/030d2a-9ca1c4-df754e-221f2d-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