Color

#1b0f33

#1b0f33
hex#1b0f33
rgbrgb(27, 15, 51)
hslhsl(260, 55%, 13%)
oklchoklch(0.208 0.068 295.2)
Closest name: Midnight Monarch (#1c0f33)Relative luminance 0.0081

Tints & shades

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

Harmonies

Complementary

Open in tool →

#27330f

#0f1533 · #2d0f33

#331b0f · #0f331b

Split-complementary

Open in tool →

#332d0f · #15330f

#330f15 · #27330f · #0f332d

Contrast

#1b0f33 as textRatioAAAA largeAAAFix
Aaon white
18.06:1passpasspassPasses AAA — no fix needed.
Aaon black
1.16:1failfailfail
  • AA: use #8661d1 as the text (4.64:1)
  • AAA: use #a488dd as the text (7.14:1)
  • AA: or shift the background to #808080 (4.57:1)
  • AAA: or shift the background to #a3a3a3 (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 #1b0f33 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

#1b0f33 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b0f33
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 #1b0f33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b0f33-ae9cc4-dfc94e-2a1f2d-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