Color

#002838

#002838
hex#002838
rgbrgb(0, 40, 56)
hslhsl(197, 100%, 11%)
oklchoklch(0.259 0.052 230.3)
Closest name: Black Box (#0f282f)Relative luminance 0.018

Colors that go with #002838

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 →

#381000

#00382c · #000c38

#380028 · #283800

Split-complementary

Open in tool →

#38000c · #382c00

#2c0038 · #381000 · #0c3800

Contrast

#002838 as textRatioAAAA largeAAAFix
Aaon white
15.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.36:1failfailfail
  • AA: use #0080b3 as the text (4.74:1)
  • AAA: use #00a1e0 as the text (7.17:1)
  • AA: or shift the background to #8c8c8c (4.59:1)
  • AAA: or shift the background to #b0b0b0 (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 #002838 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

#002838 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #002838
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 #002838 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/002838-9cb4c4-df4e6b-1f232d-e9f1ef?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