Color

#040221

#040221
hex#040221
rgbrgb(4, 2, 33)
hslhsl(244, 89%, 7%)
oklchoklch(0.129 0.067 276.5)
Closest name: Midnight (#03012d)Relative luminance 0.0018

Tints & shades

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

Harmonies

Complementary

Open in tool →

#202202

#021022 · #140222

#220402 · #022204

Split-complementary

Open in tool →

#221402 · #102202

#220210 · #202202 · #022214

Contrast

#040221 as textRatioAAAA largeAAAFix
Aaon white
20.27:1passpasspassPasses AAA — no fix needed.
Aaon black
1.04:1failfailfail
  • AA: use #6a60f6 as the text (4.62:1)
  • AAA: use #938bf8 as the text (7.29:1)
  • AA: or shift the background to #787878 (4.59:1)
  • AAA: or shift the background to #999999 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #040221 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

#040221 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #040221
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 #040221 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040221-a39cc4-dfa24e-261f2d-e9edf1?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