Color

#183a2d

#183a2d
hex#183a2d
rgbrgb(24, 58, 45)
hslhsl(157, 41%, 16%)
oklchoklch(0.318 0.047 166.2)
Closest name: Botanical Night (#12403c)Relative luminance 0.0341

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3a1825

#183a1c · #18363a

#2d183a · #3a2d18

Split-complementary

Open in tool →

#3a1836 · #3a1c18

#1c183a · #3a1825 · #363a18

Contrast

#183a2d as textRatioAAAA largeAAAFix
Aaon white
12.49:1passpasspassPasses AAA — no fix needed.
Aaon black
1.68:1failfailfail
  • AA: use #388567 as the text (4.72:1)
  • AAA: use #47a983 as the text (7.27:1)
  • AA: or shift the background to #9c9c9c (4.55:1)
  • AAA: or shift the background to #c2c2c2 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #183a2d as the background.

Brands using this color

Fonts for this mood

#183a2d reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #183a2d
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 #183a2d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/183a2d-a2beb7-d459c4-1f2c2d-e9f1ea?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