Color

#030f3a

#030f3a
hex#030f3a
rgbrgb(3, 15, 58)
hslhsl(227, 90%, 12%)
oklchoklch(0.194 0.085 264.8)
Closest name: Infinite Night (#071037)Relative luminance 0.0067

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3a2e03

#032b3a · #13033a

#3a030f · #0f3a03

Split-complementary

Open in tool →

#3a1303 · #2b3a03

#3a032b · #3a2e03 · #033a13

Contrast

#030f3a as textRatioAAAA largeAAAFix
Aaon white
18.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.13:1failfailfail
  • AA: use #4269f5 as the text (4.57:1)
  • AAA: use #7793f8 as the text (7.31:1)
  • AA: or shift the background to #7d7d7d (4.5:1)
  • AAA: or shift the background to #a1a1a1 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #030f3a 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

#030f3a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #030f3a
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 #030f3a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/030f3a-9ca0c4-df7a4e-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