Color

#05031b

#05031b
hex#05031b
rgbrgb(5, 3, 27)
hslhsl(245, 80%, 6%)
oklchoklch(0.126 0.054 281.2)
Closest name: Obsidian Shard (#060313)Relative luminance 0.0018

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1a1c03

#030d1c · #11031c

#1c0503 · #031c05

Split-complementary

Open in tool →

#1c1103 · #0d1c03

#1c030d · #1a1c03 · #031c11

Contrast

#05031b as textRatioAAAA largeAAAFix
Aaon white
20.28:1passpasspassPasses AAA — no fix needed.
Aaon black
1.04:1failfailfail
  • AA: use #6e63ee as the text (4.68:1)
  • AAA: use #958cf2 as the text (7.31:1)
  • AA: or shift the background to #787878 (4.59:1)
  • AAA: or shift the background to #999999 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #05031b 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

#05031b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #05031b
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 #05031b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/05031b-a49cc4-dfa54e-261f2d-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