Color

#07283c

#07283c
hex#07283c
rgbrgb(7, 40, 60)
hslhsl(203, 79%, 13%)
oklchoklch(0.265 0.053 240.1)
Closest name: Black Box (#0f282f)Relative luminance 0.0189

Colors that go with #07283c

Charcoal, Royal Blue and Rust 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 →

#3b1b07

#073b35 · #070d3b

#3b0727 · #273b07

Split-complementary

Open in tool →

#3b070d · #3b3507

#35073b · #3b1b07 · #0d3b07

Contrast

#07283c as textRatioAAAA largeAAAFix
Aaon white
15.24:1passpasspassPasses AAA — no fix needed.
Aaon black
1.38:1failfailfail
  • AA: use #167cbb as the text (4.63:1)
  • AAA: use #289de6 as the text (7.06:1)
  • AA: or shift the background to #8c8c8c (4.53:1)
  • AAA: or shift the background to #b0b0b0 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #07283c as the background.

Brands using this color

Fonts for this mood

#07283c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #07283c
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 #07283c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/07283c-9cb0c4-df4e5d-1f222d-e9f1f0?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