Color

#283a3e

#283a3e
hex#283a3e
rgbrgb(40, 58, 62)
hslhsl(191, 22%, 20%)
oklchoklch(0.335 0.024 212.9)
Closest name: Astral Nomad (#203943)Relative luminance 0.0383

Colors that go with #283a3e

Amber, Blue and Blush Pink 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 →

#3e2c28

#283e37 · #282f3e

#3e283a · #3a3e28

Split-complementary

Open in tool →

#3e282f · #3e3728

#37283e · #3e2c28 · #2f3e28

Contrast

#283a3e as textRatioAAAA largeAAAFix
Aaon white
11.9:1passpasspassPasses AAA — no fix needed.
Aaon black
1.77:1failfailfail
  • AA: use #567d86 as the text (4.67:1)
  • AAA: use #739ca5 as the text (7.03:1)
  • AA: or shift the background to #a1a1a1 (4.61:1)
  • AAA: or shift the background to #c7c7c7 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #283a3e 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

#283a3e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #283a3e
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 #283a3e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/283a3e-a2b6be-df4e7a-1f252d-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