Color

#0b0042

#0b0042
hex#0b0042
rgbrgb(11, 0, 66)
hslhsl(250, 100%, 13%)
oklchoklch(0.181 0.113 275.5)
Closest name: Endless Galaxy (#000044)Relative luminance 0.0046

Tints & shades

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

Harmonies

Complementary

Open in tool →

#374200

#001642 · #2c0042

#420b00 · #00420b

Split-complementary

Open in tool →

#422c00 · #164200

#420016 · #374200 · #00422c

Contrast

#0b0042 as textRatioAAAA largeAAAFix
Aaon white
19.21:1passpasspassPasses AAA — no fix needed.
Aaon black
1.09:1failfailfail
  • AA: use #7357ff as the text (4.54:1)
  • AAA: use #9985ff as the text (7.15:1)
  • AA: or shift the background to #7d7d7d (4.67:1)
  • AAA: or shift the background to #9e9e9e (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 #0b0042 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

#0b0042 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b0042
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 #0b0042 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b0042-a79cc4-dfb14e-281f2d-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