Color

#0c1831

#0c1831
hex#0c1831
rgbrgb(12, 24, 49)
hslhsl(221, 61%, 12%)
oklchoklch(0.214 0.052 263.3)
Closest name: Dark Knight (#151931)Relative luminance 0.0095

Tints & shades

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

Harmonies

Complementary

Open in tool →

#31250c

#0c2a31 · #130c31

#310c18 · #18310c

Split-complementary

Open in tool →

#31130c · #2a310c

#310c2a · #31250c · #0c3113

Contrast

#0c1831 as textRatioAAAA largeAAAFix
Aaon white
17.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.19:1failfailfail
  • AA: use #4673d2 as the text (4.64:1)
  • AAA: use #7395dd as the text (7.07:1)
  • AA: or shift the background to #828282 (4.59:1)
  • AAA: or shift the background to #a6a6a6 (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c1831 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

#0c1831 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c1831
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 #0c1831 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c1831-9ca4c4-df6b4e-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