Color

#030b2b

#030b2b
hex#030b2b
rgbrgb(3, 11, 43)
hslhsl(228, 87%, 9%)
oklchoklch(0.167 0.067 265.6)
Closest name: Mysterious Depths (#060929)Relative luminance 0.0043

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b2303

#031f2b · #0f032b

#2b030b · #0b2b03

Split-complementary

Open in tool →

#2b0f03 · #1f2b03

#2b031f · #2b2303 · #032b0f

Contrast

#030b2b as textRatioAAAA largeAAAFix
Aaon white
19.33:1passpasspassPasses AAA — no fix needed.
Aaon black
1.09:1failfailfail
  • AA: use #4568f2 as the text (4.52:1)
  • AAA: use #7992f6 as the text (7.26:1)
  • AA: or shift the background to #7a7a7a (4.5:1)
  • AAA: or shift the background to #9c9c9c (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #030b2b as the background.

Brands using this color

Fonts for this mood

#030b2b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #030b2b
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 #030b2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/030b2b-9c9fc4-df7c4e-231f2d-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