Color

#02151d

#02151d
hex#02151d
rgbrgb(2, 21, 29)
hslhsl(198, 87%, 6%)
oklchoklch(0.183 0.031 226.5)
Closest name: Midnight Edition (#0c121b)Relative luminance 0.0064

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1d0a02

#021d17 · #02071d

#1d0215 · #151d02

Split-complementary

Open in tool →

#1d0207 · #1d1702

#17021d · #1d0a02 · #071d02

Contrast

#02151d as textRatioAAAA largeAAAFix
Aaon white
18.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.13:1failfailfail
  • AA: use #0c7fb0 as the text (4.68:1)
  • AAA: use #10a2e0 as the text (7.27:1)
  • AA: or shift the background to #7d7d7d (4.52:1)
  • AAA: or shift the background to #a1a1a1 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #02151d as the background.

Brands using this color

Fonts for this mood

#02151d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #02151d
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 #02151d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/02151d-9cb3c4-df4e69-1f232d-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