Color

#263a3b

#263a3b
hex#263a3b
rgbrgb(38, 58, 59)
hslhsl(183, 22%, 19%)
oklchoklch(0.332 0.026 199.9)
Closest name: Royal Neptune (#1c3b42)Relative luminance 0.0375

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3b2726

#263b32 · #262f3b

#3b263a · #3a3b26

Split-complementary

Open in tool →

#3b262f · #3b3226

#32263b · #3b2726 · #2f3b26

Contrast

#263a3b as textRatioAAAA largeAAAFix
Aaon white
11.99:1passpasspassPasses AAA — no fix needed.
Aaon black
1.75:1failfailfail
  • AA: use #527d80 as the text (4.6:1)
  • AAA: use #6d9fa2 as the text (7.13:1)
  • AA: or shift the background to #a1a1a1 (4.64:1)
  • AAA: or shift the background to #c7c7c7 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #263a3b 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

#263a3b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263a3b
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 #263a3b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263a3b-a2b9be-d4598e-1f262d-e9f1ee?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