Color

#152151

#152151
hex#152151
rgbrgb(21, 33, 81)
hslhsl(228, 59%, 20%)
oklchoklch(0.269 0.089 269)
Closest name: Dark Soul (#112255)Relative luminance 0.0184

Tints & shades

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

Harmonies

Complementary

Open in tool →

#514515

#153f51 · #271551

#511521 · #215115

Split-complementary

Open in tool →

#512715 · #3f5115

#51153f · #514515 · #155127

Contrast

#152151 as textRatioAAAA largeAAAFix
Aaon white
15.35:1passpasspassPasses AAA — no fix needed.
Aaon black
1.37:1failfailfail
  • AA: use #556ed3 as the text (4.56:1)
  • AAA: use #8194df as the text (7.23:1)
  • AA: or shift the background to #8c8c8c (4.56:1)
  • 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 #152151 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

#152151 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #152151
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 #152151 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/152151-9c9fc4-df7c4e-231f2d-e9eff1?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