Color

#15023c

#15023c
hex#15023c
rgbrgb(21, 2, 60)
hslhsl(260, 94%, 12%)
oklchoklch(0.187 0.101 288.3)
Closest name: Quiet Abyss (#160435)Relative luminance 0.0053

Colors that go with #15023c

Charcoal, Royal Blue and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#283b02

#020b3b · #32023b

#3b1502 · #023b15

Split-complementary

Open in tool →

#3b3202 · #0b3b02

#3b020b · #283b02 · #023b32

Contrast

#15023c as textRatioAAAA largeAAAFix
Aaon white
18.99:1passpasspassPasses AAA — no fix needed.
Aaon black
1.11:1failfailfail
  • AA: use #8a52fa as the text (4.67:1)
  • AAA: use #a87efb as the text (7.04:1)
  • AA: or shift the background to #7d7d7d (4.61:1)
  • AAA: or shift the background to #9e9e9e (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #15023c 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

#15023c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15023c
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #15023c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15023c-ae9cc4-dfc94e-2a1f2d-e9ebf1?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