Color

#1d445d

#1d445d
hex#1d445d
rgbrgb(29, 68, 93)
hslhsl(203, 52%, 24%)
oklchoklch(0.371 0.062 239.5)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0519

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5d361d

#1d5d56 · #1d255d

#5d1d45 · #455d1d

Split-complementary

Open in tool →

#5d1d25 · #5d561d

#561d5d · #5d361d · #255d1d

Contrast

#1d445d as textRatioAAAA largeAAAFix
Aaon white
10.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.04:1failfailfail
  • AA: use #357ba7 as the text (4.54:1)
  • AAA: use #589fca as the text (7.23:1)
  • AA: or shift the background to #adadad (4.59:1)
  • AAA: or shift the background to #d6d6d6 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d445d as the background.

Brands using this color

Fonts for this mood

#1d445d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d445d
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 #1d445d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d445d-9cb0c4-df4e5d-1f222d-e9f1f0?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