Color

#015b31

#015b31
hex#015b31
rgbrgb(1, 91, 49)
hslhsl(152, 98%, 18%)
oklchoklch(0.414 0.103 154.7)
Closest name: Ficus Elastica (#006131)Relative luminance 0.0771

Colors that go with #015b31

Charcoal, Royal Blue and 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 →

#5b012b

#015b04 · #01585b

#31015b · #5b3101

Split-complementary

Open in tool →

#5b0158 · #5b0401

#04015b · #5b012b · #585b01

Contrast

#015b31 as textRatioAAAA largeAAAFix
Aaon white
8.26:1passpasspassPasses AAA — no fix needed.
Aaon black
2.54:1failfailfail
  • AA: use #018849 as the text (4.62:1)
  • AAA: use #02ac5c as the text (7.06:1)
  • AA: or shift the background to #c2c2c2 (4.64:1)
  • AAA: or shift the background to #ededed (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #015b31 as the background.

Brands using this color

Fonts for this mood

#015b31 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #015b31
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 #015b31 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/015b31-a2beb4-d459ce-1f2d2d-e9f1ea?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