Color

#021f40

#021f40
hex#021f40
rgbrgb(2, 31, 64)
hslhsl(212, 94%, 13%)
oklchoklch(0.24 0.072 253.9)
Closest name: Midnight Mirage (#001f3f)Relative luminance 0.0136

Tints & shades

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

Harmonies

Complementary

Open in tool →

#402302

#023e40 · #040240

#40021f · #1f4002

Split-complementary

Open in tool →

#400402 · #3e4002

#40023e · #402302 · #024004

Contrast

#021f40 as textRatioAAAA largeAAAFix
Aaon white
16.5:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #0770e9 as the text (4.5:1)
  • AAA: use #4398f9 as the text (7.1:1)
  • AA: or shift the background to #878787 (4.59:1)
  • AAA: or shift the background to #ababab (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #021f40 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

#021f40 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #021f40
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 #021f40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/021f40-9caac4-df564e-1f202d-e9f1f1?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