Color

#1c1d7d

#1c1d7d
hex#1c1d7d
rgbrgb(28, 29, 125)
hslhsl(239, 63%, 30%)
oklchoklch(0.311 0.156 272.3)
Closest name: midnightblue (#191970)Relative luminance 0.0261

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7d7b1c

#1c4e7d · #4b1c7d

#7d1c1e · #1e7d1c

Split-complementary

Open in tool →

#7d4b1c · #4e7d1c

#7d1c4e · #7d7b1c · #1c7d4b

Contrast

#1c1d7d as textRatioAAAA largeAAAFix
Aaon white
13.8:1passpasspassPasses AAA — no fix needed.
Aaon black
1.52:1failfailfail
  • AA: use #6567dc as the text (4.53:1)
  • AAA: use #8f90e6 as the text (7.3:1)
  • AA: or shift the background to #949494 (4.55:1)
  • AAA: or shift the background to #bababa (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1c1d7d as the background.

Brands using this color

Fonts for this mood

#1c1d7d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c1d7d
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 #1c1d7d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c1d7d-a09cc4-df964e-251f2d-e9edf1?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