Color

#0b041a

#0b041a
hex#0b041a
rgbrgb(11, 4, 26)
hslhsl(259, 73%, 6%)
oklchoklch(0.138 0.049 296.2)
Closest name: Obsidian Shard (#060313)Relative luminance 0.0023

Tints & shades

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

Harmonies

Complementary

Open in tool →

#131a04

#04081a · #16041a

#1a0b04 · #041a0b

Split-complementary

Open in tool →

#1a1604 · #081a04

#1a0408 · #131a04 · #041a16

Contrast

#0b041a as textRatioAAAA largeAAAFix
Aaon white
20.07:1passpasspassPasses AAA — no fix needed.
Aaon black
1.05:1failfailfail
  • AA: use #875ce6 as the text (4.7:1)
  • AAA: use #a483ec as the text (7.04:1)
  • AA: or shift the background to #787878 (4.55:1)
  • AAA: or shift the background to #999999 (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 #0b041a 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

#0b041a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b041a
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 #0b041a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b041a-ad9cc4-dfc74e-2a1f2d-e9ebf1?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