Color

#1b0033

#1b0033
hex#1b0033
rgbrgb(27, 0, 51)
hslhsl(272, 100%, 10%)
oklchoklch(0.181 0.095 302.7)
Closest name: Quiet Abyss (#160435)Relative luminance 0.0047

Tints & shades

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

Harmonies

Complementary

Open in tool →

#183300

#020033 · #330031

#331b00 · #00331b

Split-complementary

Open in tool →

#313300 · #003302

#330200 · #183300 · #003133

Contrast

#1b0033 as textRatioAAAA largeAAAFix
Aaon white
19.19:1passpasspassPasses AAA — no fix needed.
Aaon black
1.09:1failfailfail
  • AA: use #a238ff as the text (4.55:1)
  • AAA: use #bf75ff as the text (7.2:1)
  • AA: or shift the background to #7d7d7d (4.66:1)
  • AAA: or shift the background to #9e9e9e (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b0033 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

#1b0033 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b0033
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 #1b0033 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b0033-b69cc4-c5cb62-2d1f2d-eae9f1?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