Color

#230b28

#230b28
hex#230b28
rgbrgb(35, 11, 40)
hslhsl(290, 57%, 10%)
oklchoklch(0.204 0.063 320.4)
Closest name: Dark Prom Queen (#2b0f2e)Relative luminance 0.0075

Tints & shades

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

Harmonies

Complementary

Open in tool →

#10280b

#150b28 · #280b1e

#28230b · #0b2823

Split-complementary

Open in tool →

#1e280b · #0b2815

#28150b · #10280b · #0b1e28

Contrast

#230b28 as textRatioAAAA largeAAAFix
Aaon white
18.26:1passpasspassPasses AAA — no fix needed.
Aaon black
1.15:1failfailfail
  • AA: use #b543cb as the text (4.63:1)
  • AAA: use #c977da as the text (7.13:1)
  • AA: or shift the background to #808080 (4.62:1)
  • AAA: or shift the background to #a1a1a1 (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 #230b28 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

#230b28 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #230b28
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 #230b28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/230b28-bf9fc1-a6cb62-2d1f29-ece9f1?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