Color

#151f28

#151f28
hex#151f28
rgbrgb(21, 31, 40)
hslhsl(208, 31%, 12%)
oklchoklch(0.234 0.023 246.1)
Closest name: Sunken Ship (#10252a)Relative luminance 0.0129

Tints & shades

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

Harmonies

Complementary

Open in tool →

#281e15

#152827 · #151628

#28151f · #1f2815

Split-complementary

Open in tool →

#281516 · #282715

#271528 · #281e15 · #162815

Contrast

#151f28 as textRatioAAAA largeAAAFix
Aaon white
16.69:1passpasspassPasses AAA — no fix needed.
Aaon black
1.26:1failfailfail
  • AA: use #51789a as the text (4.5:1)
  • AAA: use #7699b7 as the text (7.01:1)
  • AA: or shift the background to #858585 (4.52:1)
  • AAA: or shift the background to #a8a8a8 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #151f28 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#151f28 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #151f28
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 #151f28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/151f28-9cadc4-df4e51-1f212d-e9f1f1?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