Color

#05041b

#05041b
hex#05041b
rgbrgb(5, 4, 27)
hslhsl(243, 74%, 6%)
oklchoklch(0.13 0.051 279.4)
Closest name: Obsidian Shard (#060313)Relative luminance 0.002

Tints & shades

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

Harmonies

Complementary

Open in tool →

#191b04

#040e1b · #10041b

#1b0504 · #041b05

Split-complementary

Open in tool →

#1b1004 · #0e1b04

#1b040e · #191b04 · #041b10

Contrast

#05041b as textRatioAAAA largeAAAFix
Aaon white
20.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.04:1failfailfail
  • AA: use #6a64e8 as the text (4.6:1)
  • AAA: use #918cee as the text (7.19:1)
  • AA: or shift the background to #787878 (4.58:1)
  • AAA: or shift the background to #999999 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #05041b 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

#05041b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #05041b
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 #05041b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/05041b-a39cc4-dfa04e-261f2d-e9edf1?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