Color

#1a253d

#1a253d
hex#1a253d
rgbrgb(26, 37, 61)
hslhsl(221, 40%, 17%)
oklchoklch(0.267 0.048 264.7)
Closest name: Eternal Darkness (#1c2841)Relative luminance 0.0188

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3d321a

#1a363d · #201a3d

#3d1a25 · #253d1a

Split-complementary

Open in tool →

#3d201a · #363d1a

#3d1a36 · #3d321a · #1a3d20

Contrast

#1a253d as textRatioAAAA largeAAAFix
Aaon white
15.26:1passpasspassPasses AAA — no fix needed.
Aaon black
1.38:1failfailfail
  • AA: use #5473b6 as the text (4.5:1)
  • AAA: use #7e96c8 as the text (7.08:1)
  • AA: or shift the background to #8c8c8c (4.54:1)
  • AAA: or shift the background to #b0b0b0 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1a253d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1a253d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1a253d
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 #1a253d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1a253d-9ca4c4-df6b4e-211f2d-e9eff1?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