Color

#1f3c4d

#1f3c4d
hex#1f3c4d
rgbrgb(31, 60, 77)
hslhsl(202, 43%, 21%)
oklchoklch(0.341 0.046 236)
Closest name: Astral Nomad (#203943)Relative luminance 0.0406

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4d2f1f

#1f4d46 · #1f254d

#4d1f3c · #3c4d1f

Split-complementary

Open in tool →

#4d1f25 · #4d461f

#461f4d · #4d2f1f · #254d1f

Contrast

#1f3c4d as textRatioAAAA largeAAAFix
Aaon white
11.59:1passpasspassPasses AAA — no fix needed.
Aaon black
1.81:1failfailfail
  • AA: use #407da0 as the text (4.66:1)
  • AAA: use #629ec0 as the text (7.17:1)
  • AA: or shift the background to #a3a3a3 (4.59:1)
  • AAA: or shift the background to #cccccc (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f3c4d 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

#1f3c4d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f3c4d
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 #1f3c4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f3c4d-9cb1c4-df4e5f-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