Color

#05233d

#05233d
hex#05233d
rgbrgb(5, 35, 61)
hslhsl(208, 85%, 13%)
oklchoklch(0.25 0.06 248.7)
Closest name: Midnight Mirage (#001f3f)Relative luminance 0.0157

Colors that go with #05233d

Charcoal, Crimson and Royal Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3d1f05

#053d3b · #05073d

#3d0523 · #233d05

Split-complementary

Open in tool →

#3d0507 · #3d3b05

#3b053d · #3d1f05 · #073d05

Contrast

#05233d as textRatioAAAA largeAAAFix
Aaon white
15.98:1passpasspassPasses AAA — no fix needed.
Aaon black
1.31:1failfailfail
  • AA: use #1177d0 as the text (4.57:1)
  • AAA: use #399aef as the text (7.04:1)
  • AA: or shift the background to #8a8a8a (4.63:1)
  • AAA: or shift the background to #adadad (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 #05233d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#05233d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #05233d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #05233d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/05233d-9cadc4-df4e51-1f212d-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