Color

#051239

#051239
hex#051239
rgbrgb(5, 18, 57)
hslhsl(225, 84%, 12%)
oklchoklch(0.201 0.078 264.9)
Closest name: Infinite Night (#071037)Relative luminance 0.0076

Tints & shades

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

Harmonies

Complementary

Open in tool →

#382b05

#052b38 · #120538

#380512 · #123805

Split-complementary

Open in tool →

#381205 · #2b3805

#38052b · #382b05 · #053812

Contrast

#051239 as textRatioAAAA largeAAAFix
Aaon white
18.23:1passpasspassPasses AAA — no fix needed.
Aaon black
1.15:1failfailfail
  • AA: use #3f6bee as the text (4.55:1)
  • AAA: use #7292f3 as the text (7.12:1)
  • AA: or shift the background to #808080 (4.62:1)
  • AAA: or shift the background to #a1a1a1 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #051239 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

#051239 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #051239
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 #051239 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/051239-9ca1c4-df754e-221f2d-e9eff1?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