Color

#050311

#050311
hex#050311
rgbrgb(5, 3, 17)
hslhsl(249, 70%, 4%)
oklchoklch(0.115 0.036 289)
Closest name: Obsidian Shard (#060313)Relative luminance 0.0014

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0f1103

#030811 · #0c0311

#110503 · #031105

Split-complementary

Open in tool →

#110c03 · #081103

#110308 · #0f1103 · #03110c

Contrast

#050311 as textRatioAAAA largeAAAFix
Aaon white
20.44:1passpasspassPasses AAA — no fix needed.
Aaon black
1.03:1failfailfail
  • AA: use #7663e3 as the text (4.66:1)
  • AAA: use #988aea as the text (7.16:1)
  • AA: or shift the background to #787878 (4.63:1)
  • AAA: or shift the background to #999999 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #050311 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

#050311 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #050311
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 #050311 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/050311-a79cc4-dfae4e-271f2d-e9ecf1?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