Color

#1c2830

#1c2830
hex#1c2830
rgbrgb(28, 40, 48)
hslhsl(204, 26%, 15%)
oklchoklch(0.269 0.022 237.9)
Closest name: Black Pearl (#1e272c)Relative luminance 0.0198

Tints & shades

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

Harmonies

Complementary

Open in tool →

#30241c

#1c302e · #1c1e30

#301c28 · #28301c

Split-complementary

Open in tool →

#301c1e · #302e1c

#2e1c30 · #30241c · #1e301c

Contrast

#1c2830 as textRatioAAAA largeAAAFix
Aaon white
15.05:1passpasspassPasses AAA — no fix needed.
Aaon black
1.4:1failfailfail
  • AA: use #557991 as the text (4.53:1)
  • AAA: use #7b9cb2 as the text (7.24:1)
  • AA: or shift the background to #8f8f8f (4.65:1)
  • AAA: or shift the background to #b3b3b3 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1c2830 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1c2830 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c2830
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 #1c2830 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c2830-9cafc4-df4e5a-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