Color

#1d1f2f

#1d1f2f
hex#1d1f2f
rgbrgb(29, 31, 47)
hslhsl(233, 24%, 15%)
oklchoklch(0.245 0.031 278.4)
Closest name: Eclipse Elixir (#1f2133)Relative luminance 0.0145

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2f2d1d

#1d282f · #241d2f

#2f1d1f · #1f2f1d

Split-complementary

Open in tool →

#2f241d · #282f1d

#2f1d28 · #2f2d1d · #1d2f24

Contrast

#1d1f2f as textRatioAAAA largeAAAFix
Aaon white
16.29:1passpasspassPasses AAA — no fix needed.
Aaon black
1.29:1failfailfail
  • AA: use #6a71a4 as the text (4.51:1)
  • AAA: use #9095bb as the text (7.2:1)
  • AA: or shift the background to #878787 (4.53:1)
  • AAA: or shift the background to #ababab (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d1f2f as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#1d1f2f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d1f2f
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 #1d1f2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d1f2f-9c9cc4-df884e-241f2d-e9eef1?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