Color

#28043e

#28043e
hex#28043e
rgbrgb(40, 4, 62)
hslhsl(277, 88%, 13%)
oklchoklch(0.22 0.103 308.1)
Closest name: Your Darkness (#220044)Relative luminance 0.0089

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1a3e04

#0b043e · #3e0438

#3e2804 · #043e28

Split-complementary

Open in tool →

#383e04 · #043e0b

#3e0b04 · #1a3e04 · #04383e

Contrast

#28043e as textRatioAAAA largeAAAFix
Aaon white
17.84:1passpasspassPasses AAA — no fix needed.
Aaon black
1.18:1failfailfail
  • AA: use #aa36f2 as the text (4.52:1)
  • AAA: use #c474f6 as the text (7.18:1)
  • AA: or shift the background to #808080 (4.52:1)
  • AAA: or shift the background to #a3a3a3 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28043e 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

#28043e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28043e
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 #28043e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28043e-b99cc4-bdcb62-2d1f2c-eae9f1?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