Color

#0f1b33

#0f1b33
hex#0f1b33
rgbrgb(15, 27, 51)
hslhsl(220, 55%, 13%)
oklchoklch(0.225 0.05 262.9)
Closest name: Dark Knight (#151931)Relative luminance 0.0112

Tints & shades

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

Harmonies

Complementary

Open in tool →

#33270f

#0f2d33 · #150f33

#330f1b · #1b330f

Split-complementary

Open in tool →

#33150f · #2d330f

#330f2d · #33270f · #0f3315

Contrast

#0f1b33 as textRatioAAAA largeAAAFix
Aaon white
17.14:1passpasspassPasses AAA — no fix needed.
Aaon black
1.22:1failfailfail
  • AA: use #4974ca as the text (4.63:1)
  • AAA: use #7595d7 as the text (7.04:1)
  • AA: or shift the background to #858585 (4.65:1)
  • AAA: or shift the background to #a6a6a6 (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 #0f1b33 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#0f1b33 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f1b33
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 #0f1b33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f1b33-9ca5c4-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