Color

#151f2e

#151f2e
hex#151f2e
rgbrgb(21, 31, 46)
hslhsl(216, 37%, 13%)
oklchoklch(0.237 0.032 258.3)
Closest name: Eclipse Elixir (#1f2133)Relative luminance 0.0134

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2d2415

#152b2d · #17152d

#2d151f · #1f2d15

Split-complementary

Open in tool →

#2d1715 · #2b2d15

#2d152b · #2d2415 · #152d17

Contrast

#151f2e as textRatioAAAA largeAAAFix
Aaon white
16.57:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #5076af as the text (4.55:1)
  • AAA: use #7a97c2 as the text (7.03:1)
  • AA: or shift the background to #878787 (4.61:1)
  • AAA: or shift the background to #ababab (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #151f2e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#151f2e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #151f2e
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 #151f2e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/151f2e-9ca7c4-df5f4e-201f2d-e9f0f1?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