Color

#1e2139

#1e2139
hex#1e2139
rgbrgb(30, 33, 57)
hslhsl(233, 31%, 17%)
oklchoklch(0.257 0.045 277.3)
Closest name: Eclipse Elixir (#1f2133)Relative luminance 0.0166

Tints & shades

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

Harmonies

Complementary

Open in tool →

#39361e

#1e2e39 · #281e39

#391e21 · #21391e

Split-complementary

Open in tool →

#39281e · #2e391e

#391e2e · #39361e · #1e3928

Contrast

#1e2139 as textRatioAAAA largeAAAFix
Aaon white
15.77:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #6971b0 as the text (4.59:1)
  • AAA: use #8d94c3 as the text (7.16:1)
  • AA: or shift the background to #8a8a8a (4.57:1)
  • AAA: or shift the background to #adadad (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1e2139 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1e2139 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1e2139
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 #1e2139 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1e2139-9c9cc4-df884e-241f2d-e9eef1?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