Color

#1c383b

#1c383b
hex#1c383b
rgbrgb(28, 56, 59)
hslhsl(186, 36%, 17%)
oklchoklch(0.32 0.034 204.5)
Closest name: Royal Neptune (#1c3b42)Relative luminance 0.0339

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3b1f1c

#1c3b2e · #1c283b

#3b1c38 · #383b1c

Split-complementary

Open in tool →

#3b1c28 · #3b2e1c

#2e1c3b · #3b1f1c · #283b1c

Contrast

#1c383b as textRatioAAAA largeAAAFix
Aaon white
12.51:1passpasspassPasses AAA — no fix needed.
Aaon black
1.68:1failfailfail
  • AA: use #408087 as the text (4.66:1)
  • AAA: use #50a1aa as the text (7.02:1)
  • AA: or shift the background to #9c9c9c (4.56:1)
  • AAA: or shift the background to #c2c2c2 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1c383b 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

#1c383b reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c383b
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 #1c383b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c383b-a2b8be-df4e86-1f262d-e9f1ee?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