Color

#030f2b

#030f2b
hex#030f2b
rgbrgb(3, 15, 43)
hslhsl(222, 87%, 9%)
oklchoklch(0.177 0.06 261.8)
Closest name: Mysterious Depths (#060929)Relative luminance 0.0054

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b1f03

#03232b · #0b032b

#2b030f · #0f2b03

Split-complementary

Open in tool →

#2b0b03 · #232b03

#2b0323 · #2b1f03 · #032b0b

Contrast

#030f2b as textRatioAAAA largeAAAFix
Aaon white
18.97:1passpasspassPasses AAA — no fix needed.
Aaon black
1.11:1failfailfail
  • AA: use #326bf1 as the text (4.51:1)
  • AAA: use #6b94f5 as the text (7.18:1)
  • AA: or shift the background to #7d7d7d (4.61:1)
  • AAA: or shift the background to #9e9e9e (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #030f2b as the background.

Brands using this color

Fonts for this mood

#030f2b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #030f2b
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 #030f2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/030f2b-9ca3c4-df6e4e-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