Color

#1f1429

#1f1429
hex#1f1429
rgbrgb(31, 20, 41)
hslhsl(271, 34%, 12%)
oklchoklch(0.216 0.043 307.3)
Closest name: Dark Knight (#151931)Relative luminance 0.0095

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1e2914

#151429 · #291429

#291f14 · #14291f

Split-complementary

Open in tool →

#292914 · #142915

#291514 · #1e2914 · #142929

Contrast

#1f1429 as textRatioAAAA largeAAAFix
Aaon white
17.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.19:1failfailfail
  • AA: use #8e65b3 as the text (4.66:1)
  • AAA: use #a98bc6 as the text (7.2:1)
  • AA: or shift the background to #828282 (4.59:1)
  • AAA: or shift the background to #a6a6a6 (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f1429 as the background.

Brands using this color

Fonts for this mood

#1f1429 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f1429
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 #1f1429 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f1429-b59cc4-c7cb62-2c1f2d-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