Color

#1b0066

#1b0066
hex#1b0066
rgbrgb(27, 0, 102)
hslhsl(256, 100%, 20%)
oklchoklch(0.248 0.151 278.7)
Closest name: Blackmail (#220066)Relative luminance 0.0119

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4b6600

#001866 · #4e0066

#661b00 · #00661b

Split-complementary

Open in tool →

#664e00 · #186600

#660018 · #4b6600 · #00664e

Contrast

#1b0066 as textRatioAAAA largeAAAFix
Aaon white
16.96:1passpasspassPasses AAA — no fix needed.
Aaon black
1.24:1failfailfail
  • AA: use #8052ff as the text (4.57:1)
  • AAA: use #a280ff as the text (7.07:1)
  • AA: or shift the background to #858585 (4.6:1)
  • AAA: or shift the background to #a8a8a8 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b0066 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

#1b0066 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b0066
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 #1b0066 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b0066-ab9cc4-dfbf4e-291f2d-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