Color

#263a59

#263a59
hex#263a59
rgbrgb(38, 58, 89)
hslhsl(216, 40%, 25%)
oklchoklch(0.347 0.06 258.9)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0416

Tints & shades

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

Harmonies

Complementary

Open in tool →

#594526

#265459 · #2b2659

#59263b · #3b5926

Split-complementary

Open in tool →

#592b26 · #545926

#592654 · #594526 · #26592b

Contrast

#263a59 as textRatioAAAA largeAAAFix
Aaon white
11.46:1passpasspassPasses AAA — no fix needed.
Aaon black
1.83:1failfailfail
  • AA: use #4d75b3 as the text (4.51:1)
  • AAA: use #7b99c6 as the text (7.21:1)
  • AA: or shift the background to #a3a3a3 (4.54:1)
  • AAA: or shift the background to #cccccc (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #263a59 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

#263a59 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263a59
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 #263a59 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263a59-9ca7c4-df5f4e-201f2d-e9f0f1?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