Color

#0d131c

#0d131c
hex#0d131c
rgbrgb(13, 19, 28)
hslhsl(216, 37%, 8%)
oklchoklch(0.185 0.021 258.3)
Closest name: Midnight Edition (#0c121b)Relative luminance 0.0064

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1c160d

#0d1a1c · #0e0d1c

#1c0d13 · #131c0d

Split-complementary

Open in tool →

#1c0e0d · #1a1c0d

#1c0d1a · #1c160d · #0d1c0e

Contrast

#0d131c as textRatioAAAA largeAAAFix
Aaon white
18.63:1passpasspassPasses AAA — no fix needed.
Aaon black
1.13:1failfailfail
  • AA: use #5076af as the text (4.55:1)
  • AAA: use #7a97c2 as the text (7.03:1)
  • AA: or shift the background to #7d7d7d (4.53:1)
  • AAA: or shift the background to #a1a1a1 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0d131c as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0d131c reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d131c
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 #0d131c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d131c-9ca7c4-df5f4e-201f2d-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