Color

#1d183e

#1d183e
hex#1d183e
rgbrgb(29, 24, 62)
hslhsl(248, 44%, 17%)
oklchoklch(0.239 0.07 285.8)
Closest name: Nightwalker (#161d3b)Relative luminance 0.0126

Tints & shades

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

Harmonies

Complementary

Open in tool →

#393e18

#18263e · #30183e

#3e1d18 · #183e1d

Split-complementary

Open in tool →

#3e3018 · #263e18

#3e1826 · #393e18 · #183e30

Contrast

#1d183e as textRatioAAAA largeAAAFix
Aaon white
16.77:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #7568c4 as the text (4.53:1)
  • AAA: use #968dd3 as the text (7.05:1)
  • AA: or shift the background to #858585 (4.54:1)
  • AAA: or shift the background to #a8a8a8 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d183e 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

#1d183e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d183e
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 #1d183e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d183e-a69cc4-dfac4e-271f2d-e9ecf1?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