Color

#1d4e4d

#1d4e4d
hex#1d4e4d
rgbrgb(29, 78, 77)
hslhsl(179, 46%, 21%)
oklchoklch(0.391 0.052 193.4)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0625

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4e1d1e

#1d4e35 · #1d364e

#4d1d4e · #4e4d1d

Split-complementary

Open in tool →

#4e1d36 · #4e351d

#351d4e · #4e1d1e · #364e1d

Contrast

#1d4e4d as textRatioAAAA largeAAAFix
Aaon white
9.34:1passpasspassPasses AAA — no fix needed.
Aaon black
2.25:1failfailfail
  • AA: use #308281 as the text (4.64:1)
  • AAA: use #3da4a2 as the text (7.03:1)
  • AA: or shift the background to #b5b5b5 (4.55:1)
  • AAA: or shift the background to #e0e0e0 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d4e4d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1d4e4d reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d4e4d
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 #1d4e4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d4e4d-a2bbbe-d45996-1f272d-e9f1ed?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