Color

#152a8a

#152a8a
hex#152a8a
rgbrgb(21, 42, 138)
hslhsl(229, 74%, 31%)
oklchoklch(0.344 0.16 267)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0365

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a7415

#15648a · #3a158a

#8a152a · #2a8a15

Split-complementary

Open in tool →

#8a3a15 · #648a15

#8a1564 · #8a7415 · #158a3a

Contrast

#152a8a as textRatioAAAA largeAAAFix
Aaon white
12.14:1passpasspassPasses AAA — no fix needed.
Aaon black
1.73:1failfailfail
  • AA: use #526de5 as the text (4.68:1)
  • AAA: use #7e92ec as the text (7.21:1)
  • AA: or shift the background to #9e9e9e (4.53:1)
  • AAA: or shift the background to #c7c7c7 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #152a8a as the background.

Brands using this color

Fonts for this mood

#152a8a reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #152a8a
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 #152a8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/152a8a-9c9fc4-df7e4e-231f2d-e9eef1?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