Color

#1b0a33

#1b0a33
hex#1b0a33
rgbrgb(27, 10, 51)
hslhsl(265, 67%, 12%)
oklchoklch(0.199 0.077 298.1)
Closest name: Midnight Monarch (#1c0f33)Relative luminance 0.0069

Tints & shades

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

Harmonies

Complementary

Open in tool →

#22330a

#0a0e33 · #300a33

#331b0a · #0a331b

Split-complementary

Open in tool →

#33300a · #0e330a

#330a0e · #22330a · #0a3330

Contrast

#1b0a33 as textRatioAAAA largeAAAFix
Aaon white
18.46:1passpasspassPasses AAA — no fix needed.
Aaon black
1.14:1failfailfail
  • AA: use #9059de as the text (4.67:1)
  • AAA: use #ad84e7 as the text (7.23:1)
  • AA: or shift the background to #808080 (4.67:1)
  • AAA: or shift the background to #a1a1a1 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b0a33 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

#1b0a33 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b0a33
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 #1b0a33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b0a33-b19cc4-dfd54e-2b1f2d-e9eaf1?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