Color

#263a40

#263a40
hex#263a40
rgbrgb(38, 58, 64)
hslhsl(194, 25%, 20%)
oklchoklch(0.334 0.028 218.5)
Closest name: Astral Nomad (#203943)Relative luminance 0.0381

Tints & shades

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

Harmonies

Complementary

Open in tool →

#402c26

#264039 · #262d40

#40263a · #3a4026

Split-complementary

Open in tool →

#40262d · #403926

#392640 · #402c26 · #2d4026

Contrast

#263a40 as textRatioAAAA largeAAAFix
Aaon white
11.92:1passpasspassPasses AAA — no fix needed.
Aaon black
1.76:1failfailfail
  • AA: use #527c89 as the text (4.6:1)
  • AAA: use #709ca9 as the text (7.02:1)
  • AA: or shift the background to #a1a1a1 (4.61:1)
  • AAA: or shift the background to #c7c7c7 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #263a40 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

#263a40 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263a40
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 #263a40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263a40-9cb6c4-df4e72-1f242d-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