Color

#0a1319

#0a1319
hex#0a1319
rgbrgb(10, 19, 25)
hslhsl(204, 43%, 7%)
oklchoklch(0.181 0.018 238.3)
Closest name: Midnight Edition (#0c121b)Relative luminance 0.006

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1a100a

#0a1a18 · #0a0c1a

#1a0a13 · #131a0a

Split-complementary

Open in tool →

#1a0a0c · #1a180a

#180a1a · #1a100a · #0c1a0a

Contrast

#0a1319 as textRatioAAAA largeAAAFix
Aaon white
18.75:1passpasspassPasses AAA — no fix needed.
Aaon black
1.12:1failfailfail
  • AA: use #407aa0 as the text (4.51:1)
  • AAA: use #669dc2 as the text (7.17:1)
  • AA: or shift the background to #7d7d7d (4.55:1)
  • AAA: or shift the background to #a1a1a1 (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a1319 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0a1319 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a1319
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 #0a1319 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a1319-9cafc4-df4e5a-1f222d-e9f1f0?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