Color

#263a4b

#263a4b
hex#263a4b
rgbrgb(38, 58, 75)
hslhsl(208, 33%, 22%)
oklchoklch(0.339 0.04 245)
Closest name: Astral Nomad (#203943)Relative luminance 0.0395

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4b3726

#264b49 · #26274b

#4b2639 · #394b26

Split-complementary

Open in tool →

#4b2627 · #4b4926

#49264b · #4b3726 · #274b26

Contrast

#263a4b as textRatioAAAA largeAAAFix
Aaon white
11.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.79:1failfailfail
  • AA: use #507a9f as the text (4.63:1)
  • AAA: use #779bbb as the text (7.19:1)
  • AA: or shift the background to #a1a1a1 (4.54:1)
  • AAA: or shift the background to #c9c9c9 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #263a4b 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

#263a4b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263a4b
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 #263a4b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263a4b-9cadc4-df4e51-1f212d-e9f1f1?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