Color

#263b3b

#263b3b
hex#263b3b
rgbrgb(38, 59, 59)
hslhsl(180, 22%, 19%)
oklchoklch(0.335 0.027 196)
Closest name: Royal Neptune (#1c3b42)Relative luminance 0.0386

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3b2626

#263b30 · #26303b

#3b263b · #3b3b26

Split-complementary

Open in tool →

#3b2630 · #3b3026

#30263b · #3b2626 · #303b26

Contrast

#263b3b as textRatioAAAA largeAAAFix
Aaon white
11.86:1passpasspassPasses AAA — no fix needed.
Aaon black
1.77:1failfailfail
  • AA: use #507c7c as the text (4.52:1)
  • AAA: use #6aa0a0 as the text (7.15:1)
  • AA: or shift the background to #a1a1a1 (4.59:1)
  • AAA: or shift the background to #c7c7c7 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #263b3b 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

#263b3b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263b3b
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 #263b3b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263b3b-a2bbbe-d45994-1f272d-e9f1ed?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