Color

#001f42

#001f42
hex#001f42
rgbrgb(0, 31, 66)
hslhsl(212, 100%, 13%)
oklchoklch(0.241 0.076 253.7)
Closest name: Midnight Mirage (#001f3f)Relative luminance 0.0137

Tints & shades

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

Harmonies

Complementary

Open in tool →

#422300

#004042 · #020042

#42001f · #1f4200

Split-complementary

Open in tool →

#420200 · #404200

#420040 · #422300 · #004202

Contrast

#001f42 as textRatioAAAA largeAAAFix
Aaon white
16.47:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #0070f0 as the text (4.58:1)
  • AAA: use #3d98ff as the text (7.13:1)
  • AA: or shift the background to #878787 (4.59:1)
  • AAA: or shift the background to #ababab (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #001f42 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

#001f42 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #001f42
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 #001f42 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/001f42-9caac4-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