Color

#3c153d

#3c153d
hex#3c153d
rgbrgb(60, 21, 61)
hslhsl(299, 49%, 16%)
oklchoklch(0.275 0.085 326.6)
Closest name: Velvet Cosmos (#441144)Relative luminance 0.0183

Colors that go with #3c153d

Charcoal, Sea Green and Slate Blue 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 →

#153d15

#28153d · #3d1529

#3d3c15 · #153d3c

Split-complementary

Open in tool →

#293d15 · #153d28

#3d2815 · #153d15 · #15293d

Contrast

#3c153d as textRatioAAAA largeAAAFix
Aaon white
15.36:1passpasspassPasses AAA — no fix needed.
Aaon black
1.37:1failfailfail
  • AA: use #bc41be as the text (4.64:1)
  • AAA: use #cf76d0 as the text (7.16:1)
  • AA: or shift the background to #8c8c8c (4.57:1)
  • AAA: or shift the background to #b0b0b0 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c153d 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

#3c153d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c153d
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 #3c153d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c153d-c19fbd-96cb62-2d1f27-ede9f1?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