Color

#1d2b4e

#1d2b4e
hex#1d2b4e
rgbrgb(29, 43, 78)
hslhsl(223, 46%, 21%)
oklchoklch(0.296 0.067 266)
Closest name: Midnight Ocean (#0f2d4d)Relative luminance 0.0254

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4e401d

#1d444e · #281d4e

#4e1d2b · #2b4e1d

Split-complementary

Open in tool →

#4e281d · #444e1d

#4e1d44 · #4e401d · #1d4e28

Contrast

#1d2b4e as textRatioAAAA largeAAAFix
Aaon white
13.93:1passpasspassPasses AAA — no fix needed.
Aaon black
1.51:1failfailfail
  • AA: use #5472c0 as the text (4.55:1)
  • AAA: use #7d94cf as the text (7.01:1)
  • AA: or shift the background to #949494 (4.59:1)
  • AAA: or shift the background to #b8b8b8 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d2b4e 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

#1d2b4e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d2b4e
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 #1d2b4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d2b4e-9ca3c4-df704e-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